American Air Liquide, Inc.
384Patents
179Active
384Granted
51Portfolio score
Filing activity: Aug 14, 1987 → Oct 25, 2023 · 63 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5001873A | Method and apparatus for in situ cleaning of excimer laser optics | Electricity | 125 | Expired |
| US5743723A | Oxy-fuel burner having coaxial fuel and oxidant outlets | Emerging Cross-Sectional Technologies | 123 | Expired |
| US6250916A | Heat recovery apparatus and methods of use | Emerging Cross-Sectional Technologies | 107 | Expired |
| US6123542A | Self-cooled oxygen-fuel burner for use in high-temperature and high-particulate furnaces | Emerging Cross-Sectional Technologies | 101 | Expired |
| US5975886A | Combustion process and apparatus therefore containing separate injection of fuel and oxidant streams | Emerging Cross-Sectional Technologies | 96 | Expired |
| US6745573B2 | Integrated air separation and power generation process | Emerging Cross-Sectional Technologies | 95 | Expired |
| US6126438A | Preheated fuel and oxidant combustion burner | Emerging Cross-Sectional Technologies | 94 | Expired |
| US6071116A | Heat recovery apparatus and methods of use | Emerging Cross-Sectional Technologies | 90 | Expired |
| US6113389A | Method and system for increasing the efficiency and productivity of a high temperature furnace | Emerging Cross-Sectional Technologies | 90 | Expired |
| US6314896A | Method for operating a boiler using oxygen-enriched oxidants | Emerging Cross-Sectional Technologies | 87 | Expired |
| US5833447A | Combustion process and apparatus therefore containing separate injection of fuel and oxidant streams | Emerging Cross-Sectional Technologies | 86 | Expired |
| US6210151A | Self-cooled oxygen-fuel burner for use in high-temperature and high-particulate furnaces | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6171100A | Oxidizing oxygen-fuel burner firing for reducing NOx emissions from high temperature furnaces | Emerging Cross-Sectional Technologies | 84 | Expired |
| US7401577B2 | Real time optimization and control of oxygen enhanced boilers | Emerging Cross-Sectional Technologies | 84 | Active |
| US5984667A | Combustion process and apparatus therefore containing separate injection of fuel and oxidant streams | Emerging Cross-Sectional Technologies | 83 | Expired |
| US5954498A | Oxidizing oxygen-fuel burner firing for reducing NOx emissions from high temperature furnaces | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6276928A | Method of retrofitting a furnace to provide oxygen enrichment | Emerging Cross-Sectional Technologies | 81 | Expired |
| US6045353A | Method and apparatus for optical flame control of combustion burners | Mechanical Engineering; Lighting; Heating | 80 | Expired |
| US6074197A | Combustion process and apparatus therefore containing separate injection of fuel and oxidant streams | Emerging Cross-Sectional Technologies | 79 | Expired |
| US6068468A | Refractory block for use in a burner assembly | Emerging Cross-Sectional Technologies | 79 | Expired |
| US5829962A | Method and apparatus for optical flame control of combustion burners | Mechanical Engineering; Lighting; Heating | 76 | Expired |
| US6276924A | Self-cooled oxygen-fuel for use in high-temperature and high-particulate furnaces | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5858065A | Process and system for separation and recovery of perfluorocompound gases | Emerging Cross-Sectional Technologies | 74 | Expired |
| US6077072A | Prefferential oxygen firing system for counter-current mineral calcining | Mechanical Engineering; Lighting; Heating | 73 | Expired |
| US6454562B1 | Oxy-boost control in furnaces | Emerging Cross-Sectional Technologies | 72 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.