Helmut Prestel
3Patents
3h-index
4Co-inventors
36Inventor score
Filing activity: Sep 26, 1989 → May 13, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4999433A | Process for the preparation of benzotriazole derivatives | Chemistry; Metallurgy | 16 | Expired |
| US5086173A | Process for the preparation of alkylhydroxyanilinothiotriazine derivatives | Chemistry; Metallurgy | 5 | Expired |
| US5276161A | Process for the preparation of benzotriazoles | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.