OM Industrial Co., Ltd.
10Patents
0Active
10Granted
28Portfolio score
Filing activity: Feb 7, 1984 → Sep 28, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4494673A | Safety plastic filler neck cap | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5313978A | Ventilation line opening/closing means of fuel tank | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4955950A | Fuel fill tube for automobile | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5159953A | Check valve apparatus for fuel tank | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5327933A | Check valve of fuel tank | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5222519A | Reverse-flow prevention device for fuel tank | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5020685A | Filler neck cap with pressure valve | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4790449A | Safety plastic filler neck cap | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5325979A | Fuel erroneous supply prevention shutter | Performing Operations; Transporting | 3 | Expired |
| US5172721A | Check valve for fuel tank | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.