Company patents
MAINSPRING ENERGY, INC.
MAINSPRING ENERGY, INC. exhibits a concentrated patent strategy, with 60.4% of its portfolio in Electric Motors & Generators and 26.4% in Motor Control, yet surprisingly, patenting in its core Electric Motors & Generators category has seen a significant decline of 60.0% so far in 2026 compared to 2025, suggesting a potential shift in R&D focus or a slowdown in new innovations within this primary area. Furthermore, the complete cessation of patenting in Emergency Protective Circuits and Pumps (Positive Displacement) so far in 2026, after some activity in 2025, indicates a clear deprioritization of these areas.
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.
53 US filings (since 2023) · 5 categories · 8 themes
Innovations in the design, materials, and maintenance of seals, valves, and related components to improve durability, reduce leakage, and enable specific pump functions like high-pressure operation or automated seal replacement.
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.
Sophisticated software or hardware-implemented control strategies that optimize motor performance, such as precise speed/torque regulation, vibration reduction, or efficiency, often using model-based, predictive, or adaptive techniques.
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.
Bearings that utilize a pressurized gas or liquid film to create a non-contact support surface, reducing friction and wear, often incorporating specific flow restriction or airfoil designs.
Design and integration of bearings within larger mechanical systems or devices, focusing on mounting structures, housing, endplay management, and overall assembly for specific applications.
Improvements to the internal components and configurations of rolling element bearings, such as cage designs, separator materials, raceway geometry, or adjustable elements, to enhance performance or lifespan.
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.
Patents
Showing 1-3 of 3
Rolling Element Bearing Optimization