Hans-Juergen Graf
6Patents
6h-index
9Co-inventors
45Inventor score
Filing activity: May 20, 1986 → Mar 22, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4859375A | Chemical refill system | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4979643A | Chemical refill system | Chemistry; Metallurgy | 42 | Expired |
| US5041267A | Ultra high purity reagent container with large breakseal | Performing Operations; Transporting | 27 | Expired |
| US4696411A | Large breakseal actuator with built-in valve | Performing Operations; Transporting | 16 | Expired |
| US4842827A | Vacuum vapor transport control | Physics | 14 | Expired |
| US4886178A | Method and apparatus for packaging, shipping and using poisonous liquids | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.