Company patents

PROTERIAL, LTD.

PROTERIAL, LTD. demonstrates a dynamic patent strategy, with a strong foundational focus on "Alloys" (21.5% of portfolio) and "Cables & Conductors" (19.2%), yet surprisingly, both categories show significant declines so far in 2026 (YoY -53.1% and -61.3% respectively). While many categories experienced rapid growth in 2024, such as "Additive Manufacturing (3D Printing)" (+250.0% YoY) and "Material & Chemical Analysis" (+350.0% YoY), the company appears to be shifting priorities, as evidenced by the sharp decline in patenting activity across most categories in 2026, with the exception of "Measurement (Non-specific)" which saw a remarkable +125.0% YoY growth in 2026, indicating an emerging focus despite the overall portfolio's current year's partial data.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

489 US filings (since 2023) · 12 categories · 30 themes

Cable Termination & Management

Systems and methods for preparing, organizing, and electrically connecting individual conductors or cable bundles to connector terminals, ensuring reliable contact and strain relief.

Cables & ConductorsElectrical Connectors
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90since 2023
0.0%YoY
Specialized Conductor Formulations

Development of new conductive materials, including powders, composites, and alloys, designed for specific electrical performance, manufacturing processes, or applications beyond basic copper wires.

Cables & Conductors
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88since 2023
-23.3%YoY
Alloy Coatings & Surface Treatment

Methods and compositions for applying metallic or alloy layers to a substrate, or modifying the surface of an alloy, to impart specific functional properties such as corrosion resistance, wear resistance, electrical insulation, or improved adhesion, without altering the bulk properties significantly.

Alloys
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83since 2023
+3.8%YoY
Advanced Magnetic Powder Materials

Development and processing of metal powders with specific magnetic properties, including soft magnetic alloys, permanent magnet materials, and insulated powders for electronic components, often involving precise control of particle size, morphology, and composition.

AlloysMagnets & InductorsPowder MetallurgyElectric Motors & Generators
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80since 2023
+19.0%YoY
Cable Harness & Armor Design

Structural design and manufacturing techniques for bundling multiple wires into harnesses, including protective layers like braiding and interlocking armor, and methods for assembly and termination.

Cables & Conductors
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70since 2023
+13.0%YoY
High-Density Magnetic Component Integration

Techniques for designing and manufacturing compact, multi-functional magnetic components, such as inductors, transformers, and coils, often involving embedded structures, multilayer designs, or shared magnetic circuits to achieve higher power density or smaller form factors.

Magnets & Inductors
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42since 2023
+50.0%YoY
Advanced Cable Insulation & Sheathing

Development of polymer compositions and material structures for electrical insulation and protective sheathing of cables, focusing on properties like flame retardancy, flexibility, and semiconductivity.

Cables & Conductors
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41since 2023
-27.8%YoY
Magnetic Position Sensing

Methods and devices that determine the position, angle, or distance of an object by detecting changes in magnetic fields or inductive coupling.

Measurement (Non-specific)
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38since 2023
-56.2%YoY
Torque and Tension Measurement Systems

Devices and methodologies for precisely measuring rotational force (torque) or linear pulling force (tension) within mechanical systems, frequently incorporating compensation for environmental variables like temperature.

Force / Pressure Measurement
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27since 2023
+50.0%YoY
Stator & Coil Manufacturing

Manufacturing processes and techniques for producing stator cores, windings, and coils, including lamination, impregnation, hairpin winding, and segment coil bending, to improve motor efficiency, power density, or reliability.

Electric Motors & Generators
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24since 2023
+200.0%YoY
High-Strength & Heat-Resistant Steels

Steel alloys designed to exhibit superior mechanical strength, toughness, and/or resistance to degradation at elevated temperatures, often achieved through precise control of alloying elements, microstructure (e.g., ferrite, martensite, bainite, retained austenite), and thermomechanical processing.

Alloys
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24since 2023
-22.2%YoY
Metal Matrix Composites & Hard Materials

Composite materials where a metallic matrix is reinforced with a second phase (e.g., ceramic particles, carbon nanotubes, diamond grains) to significantly enhance properties like hardness, wear resistance, stiffness, or strength, often used in cutting tools, wear parts, or structural applications.

Alloys
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22since 2023
-60.0%YoY
Metal Additive Manufacturing Processes

Techniques for building three-dimensional metal objects layer-by-layer using metal powders, including powder bed fusion, binder jetting, and directed energy deposition. This theme encompasses process mechanics, equipment design, and operational control for AM systems.

Additive Manufacturing (3D Printing)Powder Metallurgy
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19since 2023
0.0%YoY
Advanced Steering Control

Electronic, hydraulic, or steer-by-wire systems that precisely control vehicle direction, often incorporating feedback loops, compensation, and adaptation for various driving conditions or vehicle types.

Vehicle Steering & Bodies
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14since 2023
-71.4%YoY
Functionally Graded Materials & Coatingsfiltered

Production of materials where properties vary continuously or discontinuously through the volume, often achieved by combining different powders or applying specialized coatings like thermal sprays to enhance surface hardness, wear resistance, or thermal properties.

Powder Metallurgy
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13since 2023
-75.0%YoY
Tactile & Contact Force Sensing

Sensors and systems designed to detect and quantify localized contact forces, pressure distribution, or touch interactions, often employed in robotics, human-machine interfaces, or object manipulation applications.

Force / Pressure Measurement
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12since 2023
0.0%YoY
AM Process Monitoring & Control

Systems and methods for real-time sensing, modeling, and closed-loop control of additive manufacturing parameters to ensure part quality, consistency, and process efficiency. This includes thermal management, atmospheric regulation, and precise material deposition.

Additive Manufacturing (3D Printing)Powder Metallurgy
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11since 2023
-50.0%YoY
Advanced Motor Topologies

Development of novel motor architectures beyond traditional radial flux designs, including linear, axial, or multi-armature configurations, often to optimize for specific performance characteristics like torque density or form factor.

Electric Motors & Generators
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9since 2023
+600.0%YoY
Lightweight Aluminum Alloys

Aluminum-based alloys developed for applications requiring low density combined with high strength, ductility, and formability, often involving specific alloying elements (e.g., Li, Mg, Si, Mn) and controlled aging or thermomechanical treatments.

Alloys
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9since 2023
+50.0%YoY
Robust Electrical Contact Systems

Design of contact elements and their interaction to ensure stable, low-resistance electrical connection under various mechanical and environmental conditions, including spring forces and material choices.

Electrical Connectors
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7since 2023
new
Capacitive Force/Pressure Sensors

Measures force or pressure by detecting changes in electrical capacitance. This typically involves the deformation of a dielectric material or the relative movement of conductive plates, altering the distance or area between them.

Force / Pressure Measurement
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7since 2023
-66.7%YoY
Magnetic Actuation and Field Control Systems

Systems and devices that utilize controlled magnetic fields, often generated by electromagnets, to produce mechanical motion, precise positioning, or manipulate physical phenomena like plasma distribution.

Magnets & Inductors
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6since 2023
0.0%YoY
Flexible Electronic Films & Electrodes

Thin, multi-layered films and structures specifically designed for electronic applications, including flexible substrates for devices, display panel components, and active material layers for battery electrodes.

Layered Products (Laminates, Films)
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5since 2023
+100.0%YoY
Capacitive Sensing & Compensation

Design and implementation of capacitive sensors, including methods for improving accuracy, reducing power consumption, compensating for environmental variations (like temperature), and analyzing complex displacement interactions.

Measurement (Non-specific)
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3since 2023
+300.0%YoY
Differential & Dynamic Pressure Sensing

Systems and sensors designed to measure the pressure difference between two distinct points or to capture rapid, transient pressure fluctuations in fluid or gas systems, often using diaphragms or pistons.

Force / Pressure Measurement
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3since 2023
-50.0%YoY
Power & Hybrid Connector Design

Connectors specifically designed for high current or voltage applications, often incorporating features for power delivery, thermal management, or combining power and signal lines.

Electrical Connectors
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3since 2023
n/a
AM Part Design & Topology Optimization

Computational methods and design principles for generating optimized geometries, internal structures (e.g., lattices, minimal surfaces), or functional features that are specifically enabled or enhanced by the capabilities of additive manufacturing.

Additive Manufacturing (3D Printing)
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1since 2023
n/a
Hybrid Additive-Subtractive Manufacturing

Integration of additive manufacturing with subtractive manufacturing (e.g., machining, cutting) or other traditional processes within a single system or workflow to create parts with improved features, surface finish, or material properties, or to enable new manufacturing paradigms.

Additive Manufacturing (3D Printing)
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1since 2023
n/a
Automated Visual Inspection

Systems that employ imaging and image processing to automatically detect defects, verify states, or ensure quality control in manufactured goods, printed materials, or industrial processes.

Material & Chemical Analysis
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1since 2023
n/a
Motor System Integration & Safety

Integration of electric motors into larger systems (e.g., vehicles, power tools) and safety features for high-voltage components, including control interfaces, mechanical integration, and environmental protection (e.g., waterproofing).

Electric Motors & Generators
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1since 2023
n/a

Patents

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