Friedrich Stark
10Patents
6h-index
14Co-inventors
63Inventor score
Filing activity: Nov 8, 1976 → May 23, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4328947A | Pendulum gate valve | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US4192253A | Vacuum coating apparatus | Chemistry; Metallurgy | 29 | Expired |
| US4184448A | Vacuum coating apparatus having a plurality of lock chambers | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4089505A | Oscillating slide valve | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4238525A | Method and apparatus for vacuum depositing thin coatings using electron beams | Chemistry; Metallurgy | 13 | Expired |
| US4219183A | Operating mechanism for valves, gates and the like | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4233342A | Method for vapor-coating turbine buckets | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4258645A | Coupling for stationary and movable vacuum chambers | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4226587A | Heating system for vacuum coating apparatus | Chemistry; Metallurgy | 1 | Expired |
| US11051489B2 | Apparatus, liquid reservoir, system, and use of a liquid reservoir for electrolessly sprinkling animal feed | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.