SEQUAL TECHNOLOGIES INC.
16Patents
1Active
16Granted
36Portfolio score
Filing activity: Oct 1, 1993 → Apr 6, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6651658B1 | Portable oxygen concentration system and method of using the same | Performing Operations; Transporting | 295 | Expired |
| US6691702B2 | Portable oxygen concentration system and method of using the same | Performing Operations; Transporting | 217 | Expired |
| US6629525B2 | Portable oxygen concentration system and method of using the same | Performing Operations; Transporting | 177 | Expired |
| US5593478A | Fluid fractionator | Performing Operations; Transporting | 134 | Expired |
| US6698423B1 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Emerging Cross-Sectional Technologies | 131 | Expired |
| US5979440A | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Emerging Cross-Sectional Technologies | 129 | Expired |
| US6311719A | Rotary valve assembly for pressure swing adsorption system | Emerging Cross-Sectional Technologies | 116 | Expired |
| US6712087B2 | Rotary valve assembly for pressure swing adsorption system | Emerging Cross-Sectional Technologies | 105 | Expired |
| US6681764B1 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Emerging Cross-Sectional Technologies | 101 | Expired |
| US6457485B2 | Rotary valve assembly for pressure swing absorption system | Emerging Cross-Sectional Technologies | 101 | Expired |
| US6651653B1 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Emerging Cross-Sectional Technologies | 90 | Expired |
| US5730778A | Fluid fractionator | Performing Operations; Transporting | 84 | Expired |
| US6471744B1 | Vacuum-pressure swing absorption fractionator and method of using the same | Performing Operations; Transporting | 71 | Expired |
| USRE35099E | Fluid fractionator | General | 43 | Expired |
| US7517385B2 | Gas separation device and method of use | Emerging Cross-Sectional Technologies | 26 | Active |
| US7025329B2 | Needle valve for flow control | Emerging Cross-Sectional Technologies | 15 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.