Floyd E. Friedli
7Patents
4h-index
10Co-inventors
54Inventor score
Filing activity: Jan 12, 1990 → Jan 15, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6376455B1 | Quaternary ammonium compounds, compositions containing them, and uses thereof | Chemistry; Metallurgy | 81 | Expired |
| US6211139A | Polyester polyquaternary compounds, compositions containing them, and use thereof | Chemistry; Metallurgy | 47 | Expired |
| US4967008A | Polyamines and their preparation | Chemistry; Metallurgy | 27 | Expired |
| US5610187A | Biodegradable quaternary hair and skin conditioners | Human Necessities | 4 | Expired |
| US5552137A | Biodegradable quaternary hair conditioners | Human Necessities | 3 | Expired |
| US11359165B2 | Laundry spot remover | Chemistry; Metallurgy | 0 | Active |
| US5128473A | Nitrogen-heterocyclic compounds and quaternary salts thereof | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.