Friedbert Zetzsche
4Patents
4h-index
3Co-inventors
43Inventor score
Filing activity: Jul 31, 1981 → Jan 22, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5935920A | Cleaner with high wetting power | Chemistry; Metallurgy | 24 | Expired |
| US4784798A | Demulsifying cleaning preparation having a prolonged surface-wetting effect | Chemistry; Metallurgy | 13 | Expired |
| US5286402A | Demulsifying powder-form or liquid cleaning preparations and their use | Chemistry; Metallurgy | 12 | Expired |
| US4539117A | Method for improving the separating action in the ultrafiltration of aqueous solutions | Performing Operations; Transporting | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.