RCV ENGINES LIMITED
8Patents
5Active
8Granted
36Portfolio score
Filing activity: Sep 26, 2001 → Sep 4, 2019 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7131405B2 | Rotating cylinder valve engine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US7406938B2 | Cooling mechanisms for rotary valve cylinder engines | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US7134416B2 | Rotary valve seal | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US11377982B2 | Rotary valve internal combustion engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11377983B2 | Rotary valve internal combustion engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9951685B2 | Rotary valve internal combustion engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8839757B2 | Internal combustion engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9644505B2 | Rotary valve internal combustion engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.