Company patents
Sumitomo Rubber Industries, Ltd.
Sumitomo Rubber Industries, Ltd. shows a surprising shift in its patent strategy, with its core "Vehicle Tires" category, representing 48.0% of its portfolio, experiencing a significant decline of -19.9% in 2025 and -67.2% so far in 2026, indicating a potential de-emphasis on its traditional automotive focus. Concurrently, while most categories show declines in 2026, the "Polymer Additives" category, despite its smaller share (8.8%), saw a remarkable 138.5% growth in 2025, suggesting an emerging focus on advanced material compositions.
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.
1,148 US filings (since 2023) · 12 categories · 26 themes
Specialized manufacturing processes and material compositions for producing various components of tires, focusing on properties such as weight reduction, self-sealing capabilities, or structural reinforcement, often involving winding or layering techniques.
Engineering designs for tire treads, including groove patterns, sipe configurations, land shapes, and surface features, to improve performance aspects like grip, water dispersion, wear, and aerodynamic efficiency.
Design and construction of tires that do not rely on air pressure for support, often employing lattice structures, spring elements, or other resilient materials to provide load-bearing and shock-absorbing capabilities.
Innovations in golf club heads, shafts, and balls focusing on material science, aerodynamic properties, weight distribution, and impact response to improve player performance and product durability.
Development of rubber and elastomer compositions, often involving specific polymer blends, additives (e.g., process oils, reinforcing agents), and cure packages, to achieve desired mechanical properties like abrasion resistance, wet grip, shear durability, or flexibility for demanding applications.
Technologies and structural designs aimed at preventing punctures, resisting damage from external objects, and enhancing the overall robustness and lifespan of pneumatic tires.
Embedding sensors or transponders within the tire structure to enable advanced functionalities beyond basic pressure monitoring, such as foreign object detection, identification, or detailed internal state monitoring.
Technologies for continuously or periodically assessing tire wear, tread depth, distance traveled, and overall health to inform maintenance, retreading decisions, and optimize tire lifespan.
Polymer compositions incorporating inorganic or organic filler materials to impart specific functional properties such as thermal conductivity, flame retardancy, electrical conductivity, or enhanced mechanical strength and dimensional stability.
Systems and methods for detecting and transmitting tire pressure information, often including energy-saving mechanisms, wireless communication protocols, and system architectures for vehicle integration.
Development and application of polymer compositions designed for reprocessability, recyclability, or incorporating sustainable additives, often featuring reversible bonds or bio-based components.
Polymer compositions tailored for medical and biological applications, including implantable devices, drug delivery systems, and diagnostic tools, emphasizing properties like biocompatibility, hydrolysis resistance, optical clarity, and specific mechanical characteristics.
Additives or compositions specifically formulated for surface application or modification to impart protective, decorative, or specialized functional properties to polymer products.
Polymer compositions engineered for enhanced heat resistance, thermal stability in molten states, or improved processability at high temperatures, often involving specific copolymers, blends, or stabilizing additives for applications in electronics or automotive.
Novel formulations and mechanisms for initiating or controlling the polymerization and cross-linking of adhesives, including dual-curing systems, radical polymerization, and partial curing for tailored material properties.
Polymer compositions designed to change their properties (e.g., shape, optical transmittance, solubility) in response to external stimuli such as pH, temperature, light, or chemical presence, enabling applications in sensors, smart windows, or controlled release.
Design improvements in exercise equipment focusing on user comfort, safety, adjustability, and space-saving features like folding mechanisms or modular components for home or gym use.
Methods and compositions for identifying, quantifying, or characterizing specific biological molecules (e.g., nucleic acids, proteins, metabolites, antibodies) or microbial species, often for diagnostic, prognostic, or quality control applications.
Polymers incorporating reversible bonds or crosslinks that enable reprocessing, self-healing, or tunable mechanical properties, often responding to stimuli like heat, light, or pH for de-crosslinking and re-crosslinking.
Light-initiated polymerization processes used to create structures, coatings, or components, particularly for electronic devices, displays, or additive manufacturing, often involving photoinitiators and specific monomer/oligomer compositions.
Apparatuses and systems designed for handling, storing, practicing with, or maintaining equipment used in ball and net sports, such as pickleball, baseball, or basketball.
Systems using artificial intelligence and machine learning to monitor athlete performance, provide personalized training plans, predict physiological responses, or create virtual representations for feedback and analysis.
Novel methods and reactor designs for polymer synthesis, focusing on improving efficiency, achieving continuous production, or controlling specific polymer architectures and product morphologies like particle size or sheet formation.
Techniques for combining multiple materials or layers, often with specialized surface treatments, coatings, or assembly methods, to create functional or aesthetically enhanced plastic articles, including consumer goods and encapsulated electronics.
Methods and equipment for continuously shaping plastic materials by forcing them through a die, often involving screw extruders, heating elements, and downstream calibration.
Mechanical or electromechanical systems designed for precise, often self-administered, delivery of medicaments, including features for dose setting, needle insertion/retraction, and safety mechanisms to prevent premature activation.
Patents
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Smart/Responsive Polymer Materials