General Pneumatics Corp.
13Patents
2Active
13Granted
35Portfolio score
Filing activity: Nov 7, 1977 → Jun 25, 2010 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4566862A | Fluid apparatus and methods, as for inflating inflatable structures | Performing Operations; Transporting | 29 | Expired |
| USD604143S1 | Link | General | 20 | Expired |
| US6109040A | Stirling cycle refrigerator or engine employing the rotary wankel mechanism | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4566291A | Closed cycle cryogenic cooling apparatus | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5921832A | Inflation valve | Performing Operations; Transporting | 11 | Expired |
| US7743597B2 | Marine safety device attachment with automatic release capability | Emerging Cross-Sectional Technologies | 10 | Active |
| US6878024B1 | Hydrostatic release mechanism | Performing Operations; Transporting | 8 | Expired |
| US4631928A | Joule-Thomson apparatus with temperature sensitive annular expansion passageway | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4215715A | Poppet valve | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7971422B2 | Marine safety device attachment with automatic release capability | Emerging Cross-Sectional Technologies | 5 | Active |
| US4168720A | Poppet valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4738122A | Refrigerant expansion device with means for capturing condensed contaminants to prevent blockage | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6082119A | Commandably actuated cryostat | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.