VR Systems, Inc.
3Patents
0Active
3Granted
24Portfolio score
Filing activity: Mar 30, 1988 → Aug 12, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4846134A | Apparatus and method for removing and burning hydrocarbon vapors using an internal combustion engine | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5101799A | Mixture control unit for use with the control system of a soil venting apparatus | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5070850A | Mixture control unit system for soil venting apparatus | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.