Company patents
AMERICAN AXLE & MANUFACTURING, INC.
AMERICAN AXLE & MANUFACTURING, INC. shows a surprising, albeit volatile, engagement in semiconductor technologies, with Semiconductor Packaging & Encapsulation experiencing a massive 700.0% YoY growth in 2024 before declining, and Multi-Chip & 3D Assemblies also showing activity. While Electric Motors & Generators remains their largest category at 51.2% of the portfolio, its consistent decline (e.g., -13.3% in 2024, -7.7% in 2025, and -91.7% so far in 2026) suggests a shifting priority, despite the company's core automotive focus.
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.
80 US filings (since 2023) · 12 categories · 17 themes
Addresses the design and arrangement of electric motors, transmissions, and associated power electronics (like inverters) to form integrated drive units for hybrid or electric vehicles, including specific components like busbars and electric brakes.
Methods and components for converting power into mechanical motion to drive pump mechanisms, encompassing electric motors, hydraulic actuators, and specialized motion converters like ball screws or solenoids.
Assemblies and components designed for reliable and efficient transfer of rotational or axial forces between mechanical parts, accommodating misalignment or specific motion profiles.
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.
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.
Novel configurations and materials for gears and drivetrain components, including specialized profiles, self-aligning features, damping elements, and complex gear train arrangements like planetary, cycloidal, or strain wave gearing.
Integrated solutions for dissipating heat generated by high-density semiconductor devices within the package, including embedded cooling structures, cold plates, and optimized fluidic channels.
Novel designs or control strategies for clutches, including one-way, centrifugal, or disconnect types, to manage torque transmission in powertrains and other mechanical systems.
Methods and circuits for controlling the power electronic converters (inverters, bridges) that supply current and voltage to electric motors, including switching strategies, voltage command generation, and multi-phase configurations.
Integration of elastomeric or other damping elements into mechanical drive components to absorb shocks, reduce noise, and mitigate vibrations during operation.
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.
Designs and components for efficiently supplying, collecting, and managing lubricants (oil, grease) within gearboxes and transmissions to reduce friction, dissipate heat, and extend component operational life.
Mechanisms that convert rotational input (typically from an electric motor) into precise linear output motion, often employing screw-nut assemblies, ball screws, or cam-follower systems for various applications.
Transmissions designed to provide a continuous range of gear ratios between fixed limits, often employing ball-planetary, toroidal, or belt-pulley mechanisms, and including their control systems for stable operation in various directions.
Methods and systems for identifying anomalies, failures, or impending issues within electric motors or their associated drive and power management circuits, often by monitoring electrical or operational parameters.
Techniques for determining the rotor position, speed, or other operational parameters of an electric motor without dedicated physical sensors, often relying on back-EMF, current, or voltage measurements.
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.
Patents
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