QuestAir Technologies Inc.
27Patents
0Active
27Granted
37Portfolio score
Filing activity: Jun 9, 2000 → Jul 2, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6406523B1 | Rotary pressure swing adsorption apparatus | Performing Operations; Transporting | 179 | Expired |
| US7097925B2 | High temperature fuel cell power plant | Emerging Cross-Sectional Technologies | 164 | Expired |
| US7285350B2 | Enhanced solid oxide fuel cell systems | Emerging Cross-Sectional Technologies | 137 | Expired |
| US6866950B2 | Methods and apparatuses for gas separation by pressure swing adsorption with partial gas product feed to fuel cell power source | Emerging Cross-Sectional Technologies | 137 | Expired |
| US6514319B2 | Life support oxygen concentrator | Emerging Cross-Sectional Technologies | 122 | Expired |
| US6514318B2 | Multistage system for separating gas by adsorption | Performing Operations; Transporting | 116 | Expired |
| US6742507B2 | Feed composition modification for internal combustion engines | Emerging Cross-Sectional Technologies | 115 | Expired |
| US6902602B2 | Gas separation by combined pressure swing and displacement purge | Emerging Cross-Sectional Technologies | 106 | Expired |
| US7094275B2 | Modular pressure swing adsorption apparatus | Performing Operations; Transporting | 104 | Expired |
| US6451095B1 | Modular pressure swing adsorption apparatus | Performing Operations; Transporting | 104 | Expired |
| US6565635B2 | Layered manifold pressure swing adsorption device and method | Chemistry; Metallurgy | 101 | Expired |
| US6921597B2 | Electrical current generation system | Emerging Cross-Sectional Technologies | 93 | Expired |
| US6692626B2 | Adsorbent laminate structures | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6488747B1 | Pressure swing adsorption with axial or centrifugal compression machinery | Performing Operations; Transporting | 82 | Expired |
| US7160367B2 | PSA with adsorbents sensitive to contaminants | Chemistry; Metallurgy | 81 | Expired |
| US7041272B2 | Systems and processes for providing hydrogen to fuel cells | Emerging Cross-Sectional Technologies | 77 | Expired |
| US6533846B1 | Modular pressure swing adsorption apparatus with clearance-type valve seals | Emerging Cross-Sectional Technologies | 75 | Expired |
| US7087331B2 | Energy efficient gas separation for fuel cells | Emerging Cross-Sectional Technologies | 74 | Expired |
| US7250073B2 | Life support oxygen concentrator | Chemistry; Metallurgy | 69 | Expired |
| USRE40006E1 | Flow regulated pressure swing adsorption system | General | 65 | Expired |
| US7037358B2 | PSA with adsorbents sensitive to contaminants | Chemistry; Metallurgy | 62 | Expired |
| US7189280B2 | Adsorptive separation of gas streams | Emerging Cross-Sectional Technologies | 62 | Expired |
| US6840985B2 | Surge absorber flow regulation for modular pressure swing adsorption | Performing Operations; Transporting | 54 | Expired |
| US7387849B2 | Hydrogen recycle for solid oxide fuel cell | Emerging Cross-Sectional Technologies | 51 | Expired |
| USRE38493E1 | Flow regulated pressure swing adsorption system | General | 48 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.