Helmut Springmann
4Patents
4h-index
—Co-inventors
30Inventor score
Filing activity: Jan 27, 1976 → Apr 17, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4019314A | High pressure gasification of coal using nitrogen dilution of waste gas from steam generator | Chemistry; Metallurgy | 57 | Expired |
| US4072023A | Air-rectification process and apparatus | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4141707A | Cryogenic liquefaction | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4211544A | Compression of nitrogen overhead from high pressure column in tractionation of air | Mechanical Engineering; Lighting; Heating | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.