USPTO Patent Granted for Battery Cell Leak Testing System

The USPTO has granted a patent (US12586822B2) to Marposs for a system and method for leak testing finished battery cells. The system utilizes a vacuum chamber, pump, and a detection system connected via a capillary element to identify gas or vapor leaks from internal cell components. The patent was granted on March 24, 2026.

GS Yuasa Granted US Patent for Lead-Acid Battery

The USPTO has granted US Patent US12586821B2 to GS Yuasa International Ltd. for a novel valve-regulated lead-acid battery. The patent, effective March 24, 2026, details specific compositions for negative and positive electrode materials and electrolyte solutions.

Hyundai Granted US Patent for Lithium Battery Electrolyte

The USPTO has granted Hyundai Motor Company a patent for a novel electrolyte composition for lithium secondary batteries. The electrolyte includes an ionic liquid, a carbonate-based solvent, and a nitrile-based solvent, designed to enhance battery performance.

USPTO Patent Granted for Lithium Secondary Battery Electrolyte

The USPTO has granted a patent to LG Energy Solution, Ltd. for a non-aqueous electrolyte and a lithium secondary battery including the same. The patent, US12586819B2, details a specific electrolyte composition designed to enhance battery performance. This grant represents a new intellectual property asset in the field of battery technology.

USPTO Patent Granted for Polymer Gel Electrolyte

The USPTO has granted a patent (US12586818B2) to RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY for a dextrin-DADMAC based double network polymer gel electrolyte. The patent covers the electrolyte composition and a method for its preparation, intended for use in energy storage devices.

USPTO Patent Granted for Polysulfide-Polyoxide Electrolyte Membrane

The USPTO has granted a patent (US12586817B2) to The University of Akron for a polysulfide-polyoxide electrolyte membrane for energy storage devices. The patent describes a novel polymer electrolyte membrane that includes a copolymer network of polyoxide and polysulfide, designed to improve battery performance through prelithiation.

US patent granted for energy storage devices Mar 24, 2026

US patent granted for energy storage devices Mar 24, 2026

Optima Iron Doors Trademark Application Filed

The United States Patent and Trademark Office (USPTO) has recorded an intent-to-use trademark application for 'Optima Iron Doors'. The application covers metal doors and door hardware, including online and retail store services. The filing date was October 4, 2022.

USPTO Intent to Use Trademark Application: BR BAHAR

The USPTO has received an intent-to-use trademark application (TM97591297) for the mark 'BR BAHAR'. The application seeks to cover on-line retail store services for clothing items. The filing date for this application was September 14, 2022.

USPTO Intent to Use Trademark Application: BR BAHAR

The USPTO has received an intent-to-use trademark application (TM97590828) for the mark "BR BAHAR". The application, filed on September 14, 2022, seeks to cover on-line retail store services featuring clothing items.