Praxair Technology, Inc.
1,453Patents
618Active
1,453Granted
55Portfolio score
Filing activity: Oct 21, 1987 → Apr 13, 2023 · 203 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5617997A | Narrow spray angle liquid fuel atomizers for combustion | Mechanical Engineering; Lighting; Heating | 142 | Expired |
| US5364078A | Gas dispersion apparatus for molten aluminum refining | Emerging Cross-Sectional Technologies | 127 | Expired |
| US7931888B2 | Hydrogen production method | Chemistry; Metallurgy | 114 | Active |
| US5370728A | Single bed pressure swing adsorption system and process | Performing Operations; Transporting | 112 | Expired |
| US6702570B2 | Firing method for a heat consuming device utilizing oxy-fuel combustion | Emerging Cross-Sectional Technologies | 108 | Expired |
| US6551384B1 | Medical oxygen concentrator | Performing Operations; Transporting | 103 | Expired |
| US8196387B2 | Electrical power generation apparatus | Emerging Cross-Sectional Technologies | 102 | Active |
| US6076372A | Variable load refrigeration system particularly for cryogenic temperatures | Mechanical Engineering; Lighting; Heating | 100 | Expired |
| US7985399B2 | Hydrogen production method and facility | Emerging Cross-Sectional Technologies | 98 | Active |
| US5565018A | Optimal pressure swing adsorption refluxing | Emerging Cross-Sectional Technologies | 96 | Expired |
| US5265031A | Diagnostic gas monitoring process utilizing an expert system | Emerging Cross-Sectional Technologies | 96 | Expired |
| US5257206A | Statistical process control for air separation process | Mechanical Engineering; Lighting; Heating | 95 | Expired |
| US6007606A | PSA process and system | Emerging Cross-Sectional Technologies | 93 | Expired |
| US7690204B2 | Method of maintaining a fuel Wobbe index in an IGCC installation | Emerging Cross-Sectional Technologies | 92 | Active |
| US6477859B2 | Integrated heat exchanger system for producing carbon dioxide | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5327357A | Method of decarburizing molten metal in the refining of steel using neural networks | Emerging Cross-Sectional Technologies | 86 | Expired |
| US6565010B2 | Hot gas atomization | Emerging Cross-Sectional Technologies | 86 | Expired |
| US6139810A | Tube and shell reactor with oxygen selective ion transport ceramic reaction tubes | Emerging Cross-Sectional Technologies | 86 | Expired |
| US5820655A | Solid Electrolyte ionic conductor reactor design | Chemistry; Metallurgy | 85 | Expired |
| US5769928A | PSA gas purifier and purification process | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6245127A | Pressure swing adsorption process and apparatus | Emerging Cross-Sectional Technologies | 84 | Expired |
| US6503299B2 | Pressure swing adsorption process for the production of hydrogen | Emerging Cross-Sectional Technologies | 84 | Expired |
| US7132623B2 | Luminescence sensing system for welding | Performing Operations; Transporting | 82 | Expired |
| US6176102A | Method for providing refrigeration | Mechanical Engineering; Lighting; Heating | 82 | Expired |
| US7013898B2 | Nasal pressure sensor oxygen therapy device | Human Necessities | 80 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.