Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2853664A | Digital servosystem for positioning an adjustable member | Hilger and Watts Ltd | Expired / Lapsed | 1956-06-13 | 1958-09-23 | 1976-06-13 | 0.0 yrs | 0 | |
| US2636855A | Method of producing photoconductive coatings | Hilger and Watts Ltd | Expired / Lapsed | 1948-10-18 | 1953-04-28 | 1968-10-18 | 0.0 yrs | 2 |