Axelson, Inc.
14Patents
0Active
14Granted
29Portfolio score
Filing activity: Feb 17, 1981 → Feb 11, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4671312A | Wireline cutting actuator and valve | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4619434A | Heat sensitive motor valve jack | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4434967A | Valve self-relieving seats | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5067510A | Adjustable, fusible, manually operable valve lock-open assembly | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4421134A | Heat sensitive gate valve | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5140894A | Gas spring actuator | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4523602A | Pressure controller | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4480653A | In-service test valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4527770A | In-service test valve | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4505291A | Heat sensitive fire safe valve energy assist device | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4469119A | Pilot valve with fusible lockout knob | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5027847A | Pneumatic valve actuator sequencing control system and sequencing relay device incorporated therein | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4974631A | Dome pressure maintaining valve | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4625764A | Relay valve | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.