Robert F. Helwing
3Patents
3h-index
2Co-inventors
36Inventor score
Filing activity: May 15, 1980 → Sep 26, 1986
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4304767A | Polymers of di- (and higher functionality) ketene acetals and polyols | Chemistry; Metallurgy | 173 | Expired |
| US4532335A | Preparation of ketene acetals by rearrangement of allyl and substituted allyl acetals | Chemistry; Metallurgy | 25 | Expired |
| US4842868A | Covalently bonded active agents with carbonium ion base groups | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.