Patent Explorer
Browse, filter, and analyze 6 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2950761A | Multiple string well packers | BROWN | Expired / Lapsed | 1957-08-12 | 1960-08-30 | 1977-08-12 | 0.0 yrs | 0 | |
| US2595563A | Jar type well packer | BROWN | Expired / Lapsed | 1947-09-02 | 1952-05-06 | 1967-09-02 | 0.0 yrs | 0 | |
| US2290091A | Heat control system | BROWN | Expired / Lapsed | 1938-12-16 | 1942-07-14 | 1958-12-16 | 0.0 yrs | 0 | |
| US2265512A | Heat control system | BROWN | Expired / Lapsed | 1938-10-13 | 1941-12-09 | 1958-10-13 | 0.0 yrs | 0 | |
| US2250946A | Heat and pressure control system | BROWN | Expired / Lapsed | 1938-08-06 | 1941-07-29 | 1958-08-06 | 0.0 yrs | 0 | |
| US2234858A | Humidity control apparatus | BROWN | Expired / Lapsed | 1938-12-16 | 1941-03-11 | 1958-12-16 | 0.0 yrs | 0 |