Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4417470A | Electronic temperature sensor | Otis Engineering Corp | Expired / Lapsed | 1981-09-30 | 1983-11-29 | 2001-09-30 | 0.0 yrs | 11 | |
| US3878863A | Pilot valve system | Otis Engineering Corp | Expired / Lapsed | 1973-05-07 | 1975-04-22 | 1993-05-07 | 0.0 yrs | 16 | |
| US3675720A | Well flow control system and method | Otis Engineering Corp | Expired / Lapsed | 1970-07-08 | 1972-07-11 | 1990-07-08 | 0.0 yrs | 21 |