Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4768846A | Phase conjugate reflecting media | BP PLC | Expired / Lapsed | 1987-04-14 | 1988-09-06 | 2007-04-14 | 0.0 yrs | 11 | |
| US4732215A | Subsea oil production system | BP PLC | Expired / Lapsed | 1986-05-02 | 1988-03-22 | 2006-05-02 | 0.0 yrs | 12 | |
| US4012867A | Growth of plants | BP PLC | Expired / Lapsed | 1976-04-08 | 1977-03-22 | 1996-04-08 | 0.0 yrs | 22 | |
| US3057376A | Stacked plate type fluid operated valve | BP PLC | Expired / Lapsed | 1960-05-03 | 1962-10-09 | 1980-05-03 | 0.0 yrs | 0 |