E.F. Products
7Patents
2Active
7Granted
33Portfolio score
Filing activity: Jul 8, 2002 → Oct 18, 2005 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6722141B2 | Apparatus and methods for placing an additive fluid into a refrigerant circuit | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6609385B1 | Refrigerant charging/pressure testing hose assembly | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US6796340B1 | Method and dispenser for pressurized containers used with automobile air conditioning systems | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7107781B2 | Pressure testing and refrigerant recharging hose assembly for automobiles | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7124598B2 | Pressure testing and refrigerant recharging conduit assembly for automobiles | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US7565830B2 | System, methods, and compositions for detecting and inhibiting leaks in engine oil systems | Physics | 7 | Active |
| US7565829B2 | System, methods, and compositions for detecting and inhibiting leaks in steering systems | Chemistry; Metallurgy | 5 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.