Werner Sieber
12Patents
6h-index
16Co-inventors
63Inventor score
Filing activity: Sep 24, 1975 → Jun 20, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5489462A | Distance plate building component with a protective, ventilating, heat-insulating and drainage function | Emerging Cross-Sectional Technologies | 65 | Expired |
| US6071989A | Process for preparing fine pigment dispersions | Physics | 18 | Expired |
| US5776360A | Highly disperse magnetic metal oxide particles, processes for their preparation and their use | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6211347A | Process for preparing fine pigment dispersions | Physics | 15 | Expired |
| US4215719A | Intermixing of fluid in plural tanks while maintaining the fluid levels in the tanks independent | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4263932A | Accurate dosing of regenerating fluid to processing-fluid-tank in film developing machine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4303330A | Device for processing a photographic film | Physics | 6 | Expired |
| US4431721A | Use of perylene pigments for photoelectrophoretic imaging | Chemistry; Metallurgy | 3 | Expired |
| US4352448A | Apparatus for drying sheet-like photographic material | Physics | 1 | Expired |
| US3964191A | Apparatus for simultaneous viewing of both sides of webs of photographic paper or the like | Physics | 1 | Expired |
| US4427752A | Use of isoindoline pigments for photoelectrophoretic imaging | Physics | 0 | Expired |
| US7621994B2 | Preparations of pteridine pigments | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.