Patents for March 2026

USPTO Wire & Cable Industry Patents as compiled by the editors of WCTI for March 2026.

Electrical Cable with Electrically Conductive Coating
US Patent 12555703
Published February 17, 2026
Inventors: Sashi Chuganey, Newberg, OR, USA; Yasuo Sasaki, Tsuzuki-Ku, Japan; Scott McMorrow, New Albany, IN, USA; Carol Campos, New Albany, IN, USA; Cindy Lee Diegel, Portland, OR, USA; James Alexander Moss, Newberg, OR, USA; and Francisco Noyola, Sherwood, OR, USA
Assignee: SAMTEC, Inc., New Albany, IN, USA
Electrical cables are disclosed can include at least one electrical conductor, an inner electrical insulator that surrounds the at least one electrical conductor, and an electrical shield disposed about the inner electrical insulator. The electrical cables can include an electrically conductive material disposed between adjacent layers of the electrical cable. In one example, an electrical coating can be disposed in the electrical shield, for instance, in regions of overlap. Flowable electrically conductive materials are also disclosed that can flow into gaps during operation of the electrical cable.

Liquid Cooled Charging Cable System
US Patent 12552274
Published February 17, 2026
Inventors: Behjamin Jacob Gontarz, Medina, OH, USA; and Subash Shrestha, Avon Lake, OH, USA
Assignee: Southwire Company, LLC, Carrollton, GA, USA
A liquid cooled charging cable system may be provided. The liquid cooled charging cable system may comprise a source, a load, a liquid cooled charging cable and a cooling device. The liquid cooled charging cable may connect the source to the load, and may supply electric energy from the source to the load. The liquid cooled charging cable may comprise a supply conductor and a return conductor. The cooling device may pump a coolant around the supply conductor and the return conductor where the supply conductor and the return conductor may be immersed in the coolant.
Adhesive Tape for Jacketing Elongate Items Such as More Particularly Cable Harnesses and Methods for Jacketing
US Patent 12552966
Published February 17, 2026
Inventor: Kristin Kerber, Hamburg, Germany
Assignee: Tesa SE, Norderstedt, Germany
An adhesive tape particularly for wrapping cables comprises a textile carrier and a pressure-sensitive adhesive applied on at least one side of the carrier, where starting materials used for the textile carrier comprise fibres of recycled polyethylene terephthalate, where the fraction of the fibers is at least 50 wt % and where the fibres are staple fibres or continuous filaments or are processed to form yarns.

Optical Fiber Cable
US Patent 12554090
Published February 17, 2026
Inventors: Fumiaki Sato, Osaka, Japan; Satoshi Ohnuki, Osaka, Japan; and Kenuchiro Otsuka, Osaka, Japan
Assignee: Sumitomo Electric Industries, Ltd., Osaka, Japan
An optical fiber cable includes a cable main body including 3000 or more optical fibers, a sheath material receiving therein the optical fibers and a multi-fiber connector connected to ends of the optical fibers, in which the sheath material includes 0.2% or more by mass and 1.5% or less by mass of silicone.

Colored Optical Fiber, Optical Fiber Ribbon, Assembly Cable of Single Fibers, Optical Fiber Ribbon Cable and Method for Manufacturing the Same
US Patent 12554089
Published February 17, 2026
Inventors: Kuniaki Ishizuki, Tokyo, Japan; Minoru Kasahara, Tokyo, Japan; and Mitsuhiro Iwaya, Tokyo, Japan
Assignee: Furukawa Electric Co., Ltd., Tokyo, Japan
A colored optical fiber comprises a bare optical fiber, a primary layer formed of a first ultraviolet curing resin covering the bare optical fiber, and a secondary layer formed of a second ultraviolet curing resin covering the primary layer, wherein a Young’s modulus of the primary layer is smaller than 70% with respect to a saturated Young’s modulus of the primary layer, and wherein the saturated Young’s modulus of the primary layer is smaller than or equal to 0.85 MPa.

Additive Manufacturing Feedstock Production System for Reactive Wire and Related Methods
US Patent 12551937
Published February 17, 2026
Inventors: Shiren Wang, College Station, TX, USA; Ruochen Liu, Bryan, TX, USA; Aolin Hou, College Station, TX, USA; and Chongjie Gao, College Station, TX, USA
Assignee: The Texas A&M University System, College Station, TX, USA
An additive manufacturing feedstock production system includes a transition roller configured to combine reactive metal foils into combined reactive metal foils with a first combined thickness. The additive manufacturing feedstock production system includes a work roller configured to compress the combined reactive metal foils to a second combined thickness less than the first combined thickness, and a first processing module configured to segment and stack the combined reactive metal foils into stacked reactive metal foils, and feed the stacked reactive metal foils into the work roller. The work roller is configured to repeatedly compress the stacked reactive metal foils into compressed stacked reactive metal foils with a stacked thickness equal to the second combined thickness. The additive manufacturing feedstock production system has a second processing module configured to segment the compressed stacked reactive metal foils into a wire feedstock. An alternative first processing module downstream from the work roller is configured to roll the combined reactive metal foils into rolled reactive metal foils. A work groove roller is downstream from the first processing module and configured repeatedly compress the rolled reactive metal foils into compressed rolled reactive metal foils with a roll diameter equal to a groove diameter into a wire feedstock.

Optical Communication Cable
US Patent 12554086
Published February 17, 2026
Inventors: Michael Emmerich, Berlin, Germany; Warren Welborm McAlpine, Hickory, NC, USA; and Guenter Wuensch, Neustadt, Germany
Assignee: Corning Optical Communications LLC, Charlotte, NC, USA
An optical communication cable is provided having a cable body with an inner surface defining a passage within the cable body and a plurality of core elements within the passage. A film surrounds the plurality of core elements, wherein the film directs a radial force inward onto the plurality of core elements to restrain and hold the plurality of core elements in place.

Wire-Embedded Zeolite Structures with Bare Wire Leads
US Patent 12548696
Published February 10, 2026
Inventor: Benjamin S. Woods, Melbourne, FL, USA
Assignee: Mainstream Engineering Corporation, Rockledge, FL, USA
A structure fabricated of a zeolite-based paste with an intra-layer continuous wire embedded is disclosed. Vitally, the continuous wire is extended past the bounds of the structure’s walls, creating bare wire leads that allow for connection to a power source for electrification. The structure is made of multiple layers stacked together, typically in an additive manufacturing (3D printing) process. Within this structure, at least one layer has an embedded wire running through at least some portion of it, and is equipped with two bare wire leads protruding from the structure. This wire is designed to act as a heating element for uniform Joule heating of the zeolite structure for reduced power consumption and temperature ramp-up time during a desorption process, as well as reduced system footprint and enhanced mechanical properties. The frequency of wire embedment (a wire embedded in every n.sup.th layer), the percentage of the embedded layer that contains the wire, and the wire gauge and material/composition can be modified for the desired application.

Method and Device for Untwisting and Smoothing a Cable End of a Twisted Cable
US Patent 12544825
Published February 10, 2026
Inventors: Daniel Gut, Weggis, Switzerland; and Andras Losonczy, Meierskappel, Switzerland
Assignee: Komax Holding AG, Dierikon, Switzerland
A method and a device untwists and smooths a cable end of a cable formed from single lines twisted in a twisting direction, using the device. The device includes an untwisting gripper having first and second untwisting jaws; a clamping gripper upwards of the untwisting gripper in the cable run having first and second clamping plates; and a cable gripper upwards of the clamping gripper. The method includes gripping the cable using the cable gripper; introducing the cable end between the open clamping gripper plates and the open untwisting gripper jaws; closing the plates and jaws; rotating the untwisting gripper counter to the twisting direction for untwisting the cable end; opening the jaws, reducing the jaws-plates distance and closing the plates; and smoothing the cable end by enlarging the distance between cable gripper and clamping gripper when the cable is clamped and simultaneously performing oscillating rotational untwisting gripper movements.

Spool for Preventing Tipping of the Spool During Payout of Cable
US Patent 12545548
Published February 10, 2026
Inventor: Andriy Lozhko, Syracuse, NY, USA
Assignee: PPC Broadband, Inc., East Syracuse, NY, USA
A spool includes a receiving portion configured to receive a coil of cable and a first retaining portion and a second retaining portion configured to retain the coil of cable on the receiving portion. A portion of an outer peripheral surface of the first retaining portion and a portion of an outer peripheral surface of the second retaining portion are configured to engage a ground surface. The first retaining portion includes first support portions configured to extend beyond the outer peripheral surface of the first retaining portion to engage the ground surface across a greater distance than the outer peripheral surface of the first retaining portion, and the second retaining portion includes second support portions configured to extend beyond the outer peripheral surface of the second retaining portion to engage the ground surface across a greater distance than the outer peripheral surface of the second retaining portion.

Hybrid Cable for Reducing Common Mode Noise in a Distributed DC Bus System
US Patent 12548953
Published February 10, 2026
Inventors: Zoran Vrankovic, Greenfield, WI, USA; Gary L. Skibinski, Milwaukee, WI, USA; Sooraj Kv, Mequon, WI, USA; and Adam M. Shea, Fox Point, WI, USA
Assignee: Rockwell Automation Technologies, Inc., Mayfield Heights, OH, USA
A cable for reducing electrical noise within a distributed motor drive system includes an insulating jacket defining an outer periphery of the cable. The insulating jacket extends between a first end and a second end of the cable. At least one power conductor and a ground conductor extend between the first and second ends of the cable. A communication cable also extends between the first and second ends of the cable. The communication cable includes a second jacket having an outer surface and an inner surface, where the outer surface of the second jacket defines an outer periphery of the communication cable. At least one pair of communication conductors and a braided shield extend within the communication cable. The braided shield is positioned around the communication conductors and is electrically connected to the ground conductor at the first and second ends of the cable.

Superconducting Cable System
US Patent 12542225
Published February 3, 2026
Inventors: Stephen Doyle, Dublin, Ireland; Deon Volschenk, Dublin, Ireland; Macros Acin, Dublin, Ireland; and Eoin Hodge, Dublin, Ireland
Assignee: Supernode LTD, Dublin, Ireland
The present invention provides a superconducting cable system designed to facilitate long distance superconducting, the cable system including at least one inner cryostat containing a supply of cryogenic fluid and at least one superconductor extending longitudinally of the inner cryostat and in thermal communication with the cryogenic fluid, the inner cryostat comprising a liquid crystal polymer.

Wireline and Slickline Cables for Downhole Operations
US Patent 12542224
Published February 3, 2026
Inventors: Antonio Mauricio Cevallos Navarrete; Missouri City, TX, USA, Joseph Varkey, Richmond, TX, USA; Burcu Unal Altintas, Richmond, TX, USA; Piljae Joo, Richmond, TX, USA; and Tam Tran, Sugar Land, TX, USA
Assignee: Schlumberger Technology Corporation, Sugar Land, TX, USA
In some embodiments, a cable can include an electrically conductive inner core. A first insulation layer can be disposed about the inner core. An electrically conductive layer can be disposed about the first insulation layer. A second insulation layer can be disposed about the electrically conductive layer. A first polymer jacket can be disposed about the second insulation layer. The first polymer jacket can include a first layer of armor strength members disposed therein. A second polymer jacket can be disposed about the first polymer jacket. The second polymer jacket can include a second layer of armor strength members disposed therein. An outer polymer jacket can be disposed about the second polymer jacket. At least one of the first polymer jacket, the second polymer jacket and the outer polymer jacket can be formed from an aliphatic polyketone polymer, an ethylene-propylene copolymer, a polyolefin elastomer, a polypropylene, or a cross-linkable polyethylene.

Optical Fiber Cable
US Patent 12541069
Published February 3, 2026
Inventors: Peter J. Johnston, Taylorsville, NC, USA; Christopher Mark Quinn, Hickory, NC, USA; and David Alan Seddon, Advance, NC, USA
Assignee: Corning Research & Development Corporation, Corning, NY, USA
An optical fiber cable includes a hollow-core optical fiber. The cable is configured to have a low excess fiber length (EFL) of the hollow-core fiber. The cable is further configured to maintain a high minimum bending radius of the hollow-core fiber to prevent permanent damage to the hollow-core fiber during installation and operation of the cable.

Electric Wire, Method for Producing Electric Wire and Masterbatch
US Patent 12537116
Published January 27, 2026
Inventors: Wade Martin Simpson, Orangeburg, NY, USA; Kazuki Sakami, Osaka, Japan; Shinji Murakami, Osaka, Japan; and Kazuya Kawahara, Osaka, Japan
Assignees: Daikin America, Inc., Orangeburg, NY, USA; and Daikin Industries, Ltd., Osaka, Japan
The present disclosure provides an electric wire having excellent smoothness, appearance, and storage stability. The electric wire includes a core wire and a coating layer covering the core wire. The coating layer contains a fluorine-free resin and a fluorine-containing crystalline polymer. The fluorine-free resin includes at least one selected from the group consisting of polyamide resins, polyolefin resins and polyvinyl chloride resin. The fluorine-containing crystalline polymer represents 0.5 to 4.0 mass % relative to the fluorine-free resin.
Process for the Manufacture of a Fire-Resistant and/or Fire-Retardant Cable
US Patent 12537117
Published January 27, 2026
Inventors: Thierry Auvray, Lyons, France; and Franck Gyppaz, Lyons, France
Assignee: Nexans, Courbevoie, France
The present invention relates to a process for the manufacture of a cable employing the impregnation of a non-woven fibrous material with a liquid geopolymer composition and the addition of at least one precursor composition of a gel to the liquid geopolymer composition.

Trefoil Submarine Power Cable Bundle
US Patent 12537115
Published January 27, 2026
Inventors: Andreas Tyrberg, Lyckeby, Sweden; Håkan Sandell, Karlskrona, Sweden; and Denny Tjahjanto, Sundbyberg, Sweden
Assignee: NKT HV Cables AB, Lyckeby, Sweden
A submarine power cable bundle including: a first bottom direct current, DC, submarine power cable, a second bottom DC submarine power cable and a top DC submarine power cable, wherein the first bottom DC submarine power cable and the second bottom DC submarine power cable are bundled together by means of a first elongated bundling element, forming a first bundle, wherein the first bundle is bundled together with the top DC submarine power cable by means of a second elongated bundling element, forming a trefoil configuration, wherein the first elongated bundling element bundles the first bundle tighter than the second elongated bundling element bundles the first bundle and the top DC submarine power cable.

Cable, Strand and Method and Device for Producing a Cable and a Strand
US Patent 12529186
Published January 20, 2026
Inventors: Thierry Verreet, Homburg, Germany; Markus Zogg, Stein am Rhein, Switzerland; Marco Elig, Rieschweiler-Mühlbach, Germany; and Yeonhwan Bae, Eibrücken, Germany
Assignees: KV R&D Center GmbH, Contwig, Germany; Verope AG, Zug, Switzerland; and Kiswire Ltd., Busan, South Korea
The invention relates to a laid cable (1-1b), in particular a laid fiber cable (1-1b) or a laid hybrid cable, comprising at least one core strand or a laid core cable (2-2b) and at least one outer strand (7-7b) surrounding the core strand or the core cable (2-2b), the core strand, the core cable (2-2b) and/or the at least one outer strand is composed of at least one fiber line (9-9b, 10-10b). The at least one fiber line (9-9b, 10-10b) is beneficially made of a composite material having reinforcing fibers (12), the reinforcing fibers (12) of which composite material are laid to form at least one reinforcing line (11). Advantageously, a laid cable which is stable under transverse pressure is provided. The invention also relates to a strand, to a method for manufacturing a cable and a strand, to an apparatus for producing a cable and/or a strand, as well as an apparatus with a drum drive, said apparatus comprising a cable according to the invention.

Carbon Nanotube Composite Wire and Manufacturing Method Therefor
US Patent 12529168
Published January 20, 2026
Inventors: Ken Nishiura, Shizuoka, Japan; and Jumichiro Tokutomi, Shizuoka, Japan
Assignee: Yazaki Corporation, Tokyo, Japan
Provided is a carbon nanotube composite wire including: a substrate; a carbon nanotube; and a thin metal film formed on the carbon nanotubes, wherein the carbon nanotube has a peak ratio (G/D) of a G band to a D band in a Raman spectrum of 5 or more and 30 or less, a carbon nanotube occupied area ratio that is a ratio of a cross-sectional area of the carbon nanotube to a sum of the cross-sectional area of the carbon nanotube and a cross-sectional area of the thin metal film is 10% or less in the cross section perpendicular to the longitudinal direction, and an amorphous layer made from a metal oxide is present at an interface between the carbon nanotube and the thin metal film, and a thickness of the amorphous layer is within a range of 1 nm or more and 5 nm or less.

Twin-Axial Cable Including Wedges
US Patent 12531170
Published January 20, 2026
Inventors: Bhyrav M. Mutnury, Round Rock, TX, USA; Raymond Dewine Heistand, II, Round Rock, TX, USA; and Sandor Tibor Farkas, Round Rock, TX, USA
Assignee: Dell Products L.P., Round Rock, TX, USA
A twin-axial cable including a first conductor; a first dielectric material surrounding the first conductor; a second conductor; a second dielectric material surrounding the second conductor; a first wedge; a second wedge positioned opposite to the first wedge; and a conductive shield surrounding the first conductor, the first dielectric material, the second conductor, the second dielectric material, the first wedge and the second wedge, wherein at least a portion of the first wedge is positioned between the first dielectric material and the second dielectric material at a first region of the twin-axial cable, wherein at least a portion of the second wedge is positioned between the first dielectric material and the second dielectric material at a second region of the twin-axial cable opposite to the first region of the twin-axial cable.

Power or Data Transmission Cable with Metallic Water Barrier and Process for Manufacturing Such a Cable
US Patent 12518893
Published January 6, 2026
Inventors: Marina Gandini, Milan, Italy; Enrico Maria Consonni, Milan, Italy; Giovanni Pozzati, Milan, Italy; and Massimo Tawfilas, Milan, Italy
Assignee: Prysmian S.p.A., Milan, Italy
A transmission cable includes a cable core extending along a longitudinal direction; a water barrier in form of a metallic foil folded around the cable core along the longitudinal direction with overlapped edges. The overlapped edges is bonded to one another by a bonding layer made of an inorganic material.

Electrical Cable with Dielectric Film
US Patent 12518894
Published January 6, 2026
Inventor: Dalibor Jan Smejtek, Portland, OR, USA
Assignee: Swift Bridge Technologies (M) Sdn Bhd, Panang, Malaysia
A cable includes an inner conductor and a dielectric layer extending around the inner conductor. The dielectric layer includes a linearly-stretched polypropylene film having a porous structure that includes a plurality of pores that extend through a thickness of the linearly-stretched polypropylene film. The dielectric layer includes air molecules trapped within the pores of the linearly-stretched polypropylene film such that the dielectric layer includes polypropylene and air. The cable includes an outer conductor extending around the dielectric layer.

Reel With Rolled Core
US Patent 12509322
Published December 30, 2025
Inventors: Christopher Nichols, Englewood, OH, USA; Adrienne Cowen, Richmond, IN, USA; Richard Brown, Richmond, IN, USA; and Jeffrey Creigmile, Centerville, IN, USA
Assignee: Vandor Corporation, Richmond, IN, USA
A kit for assembly into at least a first reel includes a core and two flanges. The core has a substantially rectangular main body having opposing first and second axially extending edges and opposing first and second end edges extending between the first and second axially extending edges. The core also includes a first set of interlocking teeth on the first axially extending edge, and a first set of first connecting tabs on the first end edge. The main body is configured to be deformed or rolled into a cylinder in which the first set of interlocking teeth engage connecting features of the second axially extending edge. The first flange has an annulus and at least one axially extending rib or rim. The annulus includes receptacles for receiving and operably coupling to the first set of connecting tabs. The second flange is configured to couple to the core.

Duplex Twisted Shielded Cable and Wire Harness
US Patent 12512235
Published December 30, 2025
Inventors: Taketo Kumada, Susono, Japan; and Toshiharu Shimiz, Susono, Japan
Assignee: Yazaki Corporation, Tokyo, Japan
There are provided a duplex twisted shielded cable and wire harness, the duplex twisted shielded cable including; two insulated wires that are twisted together, each having a conductor and an insulator covering the conductor; a metal foil shield provided around the two insulated wires; a metal braid provided on an outer periphery of the metal foil shield; and a sheath provided on an outer periphery of the metal braid. The metal foil shield includes a PET film layer and a metal layer. The PET film layer has a thickness of 20 μm or less, an ellipticity of the PET film layer is set to 0.75 or more and 0.90 or less, and the metal foil shield is longitudinally attached to the two insulated wires.

System and Method to Determine Quality of Termination of Wire Using Thermal Characteristics
US Patent 12512639
Published December 30, 2025
Inventors: Matthew Orlowski, Harrisburg, PA, USA; and Eric Broadaway, Middletown, PA, USA
Assignee: TE Connectivity Solutions GmbH, Bevaix, Switzerland
A wire terminating system and method which allows for determining the quality of a wire termination. The method includes: terminating the terminal to the wire; monitoring the thermal data of the termination of the terminal to the wire with one or more thermal sensors; and comparing the monitored thermal data to stored thermal data to determine if the termination of the terminal to the wire is defective. The system includes a wire termination apparatus with a thermal sensor is positioned proximate a wire termination zone to acquire thermal data of the termination of the terminal to the wire. The thermal sensor monitors the thermal data of the termination of the terminal to the wire to determine if the termination of the terminal to the wire is defective.