Ralph William Vanderburg
9Patents
5h-index
4Co-inventors
56Inventor score
Filing activity: Mar 3, 1980 → Dec 15, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9562623B2 | Position indicator for valves | Physics | 34 | Active |
| US4434967A | Valve self-relieving seats | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4354663A | Valve construction for sand and slurry service | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4480653A | In-service test valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4527770A | In-service test valve | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9140368B2 | Gate valve with track cleanout | Emerging Cross-Sectional Technologies | 4 | Active |
| US9604260B2 | Gate valve with track cleanout | Emerging Cross-Sectional Technologies | 3 | Active |
| US9909687B2 | Position indicator for valves | Physics | 2 | Active |
| US11125355B2 | Position indicator for valves | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.