Company patents
Praxair Technology, Inc.
Praxair Technology, Inc. shows a surprising shift away from its core materials science, with Separation Processes (Filtration, Distillation) declining by 100.0% in 2026 so far and Non-metallic Inorganic Compounds seeing an 83.3% drop in 2024, despite these categories representing 18.8% and 14.5% of its portfolio respectively; concurrently, there's a notable, albeit fluctuating, focus on consumer applications, as evidenced by Refrigerators & Cold Storage experiencing a 300.0% growth in 2025.
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.
69 US filings (since 2023) · 5 categories · 12 themes
Technologies and systems for removing unwanted components or separating desired gases from a mixed gas stream, including adsorption, absorption, and membrane-based methods.
Catalytic processes and novel catalyst materials designed to efficiently produce hydrogen gas from various feedstocks, including hydrocarbons (e.g., methane, natural gas) and ammonia.
Technologies and materials for capturing carbon dioxide from gas streams and subsequently converting it into valuable chemical products or materials, rather than simply storing it.
Development of materials with tailored porosity, surface chemistry, or structure, such as metal-organic frameworks (MOFs), zeolites, or superficially porous particles, for selective adsorption, ion exchange, or chromatographic separations.
Self-contained or portable units designed for maintaining specific temperatures for food, beverages, or sensitive items during transport, often incorporating active cooling or smart monitoring features.
Specific techniques and materials developed to remove persistent or difficult-to-treat pollutants from water, such as per- and polyfluoroalkyl substances (PFAS), micropollutants, or specific industrial chemicals.
Techniques and equipment for transforming raw food materials into finished products, focusing on efficiency, quality, texture modification, or specific physical alterations like extrusion, drying, or selective material removal.
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 for precisely directing and controlling chilled air within a refrigerator, often creating distinct temperature zones or optimizing cooling efficiency for different compartments.
Use of specialized materials and structures, such as vacuum insulation panels or phase change materials, to improve thermal efficiency and maintain stable temperatures within refrigeration appliances.
Integrated systems within refrigerators for dispensing chilled water, ice, or preparing beverages, often including filtration, storage components, and user interface controls.
Development and synthesis of catalysts with unique compositions or structures, such as medium entropy alloys, metal foam-supported catalysts, layered catalytic articles, or high-entropy oxides, to enhance activity, selectivity, or stability in chemical reactions.
Patents
Showing 1-7 of 7
Advanced Food Processing Methods