Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3371717A | Multiple zone well production apparatus | Baker Hughes Oilfield Operations LLC | Expired / Lapsed | 1965-09-21 | 1968-03-05 | 1985-09-21 | 0.0 yrs | 0 | |
| US2874784A | Tubing anchor | Baker Hughes Oilfield Operations LLC | Expired / Lapsed | 1955-10-17 | 1959-02-24 | 1975-10-17 | 0.0 yrs | 0 | |
| US2750958A | Drill pipe float valve | Baker Hughes Oilfield Operations LLC | Expired / Lapsed | 1953-04-27 | 1956-06-19 | 1973-04-27 | 0.0 yrs | 2 | |
| US2737247A | Well packer apparatus | Baker Hughes Oilfield Operations LLC | Expired / Lapsed | 1953-07-17 | 1956-03-06 | 1973-07-17 | 0.0 yrs | 0 | |
| US2671512A | Well packer apparatus | Baker Hughes Oilfield Operations LLC | Expired / Lapsed | 1948-07-12 | 1954-03-09 | 1968-07-12 | 0.0 yrs | 0 |