Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3827490A | Apparatus for installing and removing flow valves | CAMCO INC US | Expired / Lapsed | 1970-12-04 | 1974-08-06 | 1990-12-04 | 0.0 yrs | 19 | |
| US3799258A | Subsurface well safety valve | CAMCO INC US | Expired / Lapsed | 1971-11-19 | 1974-03-26 | 1991-11-19 | 0.0 yrs | 7 | |
| US3788397A | Kickover tool | CAMCO INC US | Expired / Lapsed | 1972-10-24 | 1974-01-29 | 1992-10-24 | 0.0 yrs | 11 | |
| US3786865A | Lockout for well safety valve | CAMCO INC US | Expired / Lapsed | 1973-03-06 | 1974-01-22 | 1993-03-06 | 0.0 yrs | 13 |