Fram Corporation
23Patents
0Active
23Granted
34Portfolio score
Filing activity: Jun 30, 1975 → Sep 22, 1982
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4159899A | Precleaner assembly | Mechanical Engineering; Lighting; Heating | 101 | Expired |
| US4437986A | Separating device and cartridge therefor | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4235611A | Air filter | Performing Operations; Transporting | 58 | Expired |
| US4464263A | Pleated filter element and integral shield and method for making same | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4324660A | Fluid filter | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4144168A | Fluid filter | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4371439A | Cam actuated filter assembly | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4400864A | Fluid filter | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4180885A | Windshield wiper | Performing Operations; Transporting | 22 | Expired |
| US4044743A | Cannister purge valve assembly | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4470301A | Probe and drain assembly for fuel oil/water separator | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4197101A | Air cleaner | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4177012A | Fan blade with bends forming general blade curvature | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4228011A | Fuel oil filter cartridge | Performing Operations; Transporting | 14 | Expired |
| US4131441A | Multi-size rain hood | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4037987A | Flexible bladed fan with increased natural frequency | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4163543A | Air control valve | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4193740A | Vibration isolator for flexible bladed fan | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4421444A | Method of attaching closure member to filter housing | Performing Operations; Transporting | 6 | Expired |
| US4050847A | Lightweight fan | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4117724A | Ambient pressure sensor | Physics | 4 | Expired |
| US4147471A | Automotive cooling fan with biased flexible blades | Emerging Cross-Sectional Technologies | 4 | Expired |
| USD250452S | Honing tool | General | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.