GREENE, TWEED & CO.
11Patents
0Active
11Granted
29Portfolio score
Filing activity: Jun 8, 1976 → Jun 12, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4893823A | Seal assembly | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5461107A | Perfluoroelastomeric compositions and seals having improved chemical resistance and methods of making the same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4840379A | Split sealing ring having a bias cut | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4421330A | Antifriction fluid seal assembly | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5444116A | Perfluoroelastomeric compositions and seals having improved chemical resistance and methods of making the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6603117B2 | Self contained sensing apparatus and system | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4067407A | Annular seal | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4352498A | Spring seal | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4229013A | Spring seal | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4421323A | Oil well string member with static seal | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5217235A | Seal assembly | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.