Company patents
Cummins Filtration Inc.
Cummins Filtration Inc. surprisingly maintains a near-exclusive focus on its core "Separation Processes (Filtration, Distillation)" technology, representing 85.3% of its patent portfolio, despite a significant -73.7% decline in patenting activity so far in 2026 for this category. While minor forays into "Batteries & Fuel Cells" and "Vehicle Brake Systems" occurred in 2025 and 2026 respectively, they represent a negligible portion of the overall strategy, suggesting a highly specialized and concentrated patenting approach rather than diversification into broader automotive or energy sectors.
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.
68 US filings (since 2023) · 4 categories · 6 themes
Membrane and depth filtration for industrial separation, gas purification, and bioprocess clarification including cross-flow, dead-end, tangential flow filtration, and oil/water separation.
Systems and methods specifically engineered for removing pollutants and impurities from water sources, ranging from groundwater decontamination to point-of-use filtration, often employing adsorption, membrane, or distillation techniques.
Membrane-based separation for water purification, contaminant removal, desalination, and wastewater treatment, including reverse osmosis, ultrafiltration, and forward osmosis modules.
Technologies and systems for removing unwanted components or separating desired gases from a mixed gas stream, including adsorption, absorption, and membrane-based methods.
Equipment and processes for separating solid particles from liquid or gas phases in industrial settings, encompassing mechanical screening, filtration of molten materials, and various filter media designs.
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 76