Hans-Joachim Schumann
7Patents
4h-index
15Co-inventors
54Inventor score
Filing activity: Oct 9, 1981 → May 7, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4543308A | Photographic recording process | Physics | 32 | Expired |
| US4460274A | Process for the luminescense-spectroscopic examination of coatings and coating profiles | Physics | 11 | Expired |
| US4835094A | Color photographic recording material containing a color coupler of the pyrazoloazole series | Physics | 9 | Expired |
| US5035987A | Color photographic recording material containing a DIR coupler | Chemistry; Metallurgy | 5 | Expired |
| US5200305A | Color photographic recording material containing color couplers which yield heat-stable dyes | Physics | 0 | Expired |
| US6228568A | Color photographic recording material | Physics | 0 | Expired |
| US12231383B2 | Methods and systems for enabling collective superintelligence | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.