Helmut Gruner
3Patents
3h-index
6Co-inventors
47Inventor score
Filing activity: Oct 1, 1975 → Apr 21, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5917059A | Preparation of cyclic acetals or ketals | Chemistry; Metallurgy | 42 | Expired |
| US4008656A | Brewing apparatus | Human Necessities | 13 | Expired |
| US6063957A | Preparation of esters of low residual acid content from .alpha., .beta.-ethylenically unsaturated carboxylic acids and hydroxyl-containing polymers | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.