Company patents
STEWART & STEVENSON LLC
STEWART & STEVENSON LLC's patent strategy reveals a surprising volatility, with its core "Drilling & Mining" category, representing 36.4% of its portfolio, experiencing a dramatic 233.3% growth in 2025 after a sharp decline, only to drop by 100.0% so far in 2026. This mirrors a broader trend of significant year-over-year fluctuations across most categories, suggesting an opportunistic rather than consistently focused approach to innovation, with "Printed Circuits & Electronic Assemblies" being a rare exception showing sustained activity with 1 patent in 2025 and 1 so far in 2026.
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.
66 US filings (since 2023) · 10 categories · 19 themes
Systems and methods employing sensors, data processing, and control algorithms to automate and optimize drilling, fracturing, and fluid production processes in real-time.
Methods and apparatus for generating, storing, and distributing electrical power within a wellbore, or for powering downhole tools and systems from the surface.
Software, algorithms, and associated hardware for monitoring, controlling, and optimizing battery performance, safety, and lifespan, including charge/discharge cycles, thermal regulation, and system integration.
Integrated systems for automatically dispensing, mixing, and often packaging multiple components to create a final product, frequently incorporating sensors and control for quality, customization, and unattended operation.
Integration of electric machines, energy storage, and power transfer systems with gas turbine engines to enable hybrid operation, electric starting, or auxiliary power generation, improving efficiency or operational flexibility.
Mixing apparatus designed for integration directly into a fluid conduit or a continuous process stream, often employing static elements, impellers within a flow path, or multi-component injection for efficient, uninterrupted processing.
Systems designed to manage the temperature of multiple components in electric or hybrid vehicles, such as batteries, electric motors, power electronics, and the passenger cabin, often using shared or interconnected cooling/heating circuits.
Focuses on the structural integrity, housing, mounting, and physical integration of battery cells into robust and protected packs within electric vehicles, including manufacturing considerations.
Systems and methods for real-time or periodic assessment of turbine engine health, including detection of wear, damage, unbalance, or deterioration, to enable predictive maintenance and extend operational life.
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.
Process and equipment for producing solid-state battery cells, including solid electrolyte synthesis (sulfide/oxide/polymer), thin-film deposition, lamination, sintering, dry-electrode fabrication, and stacking under controlled atmosphere.
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.
Deployment and operation of specialized sensors within wellbores to monitor formation properties, fluid flow, and well integrity, often using acoustic, optical, or radiation-based methods, and integrating with well operations.
Mounting and support solutions tailored for specific non-electronic equipment, such as medical devices, sports gear, or musical instruments, often including features like vibration dampening, bag suspension, or ergonomic positioning.
Techniques and systems for optimizing pump operation, including capacity modulation, energy management, pulsation reduction, and precise fluid dispensing to improve performance and reduce energy consumption.
Equipment and techniques specifically designed for effectively mixing and agitating high-viscosity fluids, slurries, or suspensions, often found in industrial, chemical, or battery manufacturing processes where material flow is challenging.
Specialized fluid compositions, including additives and inhibitors, used in oil and gas exploration and production for purposes like drilling, fracturing, cementing, corrosion inhibition, and formation stimulation.
Active anode materials and manufacturing techniques for rechargeable lithium-ion batteries, including silicon-carbon composites, graphite, lithium-metal anodes, and electrode coating processes that improve capacity, cycle life, and rate capability.
Processes and apparatus for disassembling spent batteries and recovering valuable materials (e.g., metals, electrolytes, plastics) through mechanical, chemical, or electrochemical methods for reuse or sustainable disposal.
Patents
Showing 1-10 of 74