Håkan Ingvast
7Patents
3h-index
4Co-inventors
50Inventor score
Filing activity: Mar 22, 1982 → Jul 12, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4480723A | Marshalling yard retarder | Performing Operations; Transporting | 14 | Expired |
| US5317872A | Device for improvement of running condition in hydraulic system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5775103A | Apparatus for purifying a fluid by vacuum treatment | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US8118921B2 | Unit for accumulating and degassing oil | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8177895B2 | Apparatus for degassing oil | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US8919117B2 | Energy cell operable to generate a pressurized fluid via bladder means and a phase change material | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9169852B2 | Hydraulic pressure transducer and hydraulic system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.