ORS Development Corporation
3Patents
0Active
3Granted
32Portfolio score
Filing activity: Jun 9, 1987 → Nov 23, 1987
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4821798A | Heating system for rathole oil well | Fixed Constructions | 179 | Expired |
| US4793409A | Method and apparatus for forming an insulated oil well casing | Electricity | 133 | Expired |
| US4790375A | Mineral well heating systems | Emerging Cross-Sectional Technologies | 85 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.