Horst Birkhan
4Patents
3h-index
8Co-inventors
39Inventor score
Filing activity: Aug 9, 1990 → Oct 16, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5180508A | Fabric softener rinsing agents | Chemistry; Metallurgy | 16 | Expired |
| US5703035A | Highly concentrated aqueous fabric softners having improved storage stability | Textiles; Paper | 4 | Expired |
| US5364542A | Fabric softener rinsing agents | Chemistry; Metallurgy | 4 | Expired |
| US5254270A | Fabric softeners based on quaternary poly(oxyalkylene) alkanolamine esters | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.