Rolf Steiger
26Patents
5h-index
33Co-inventors
69Inventor score
Filing activity: Mar 11, 1976 → Jul 15, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4138551A | Spectral sensitization of photographic material and new spectral sensitizers | Physics | 31 | Expired |
| US4040825A | Spectral sensitization of photographic material with natural colloids containing sensitizing dye groups | Physics | 29 | Expired |
| US6156419A | Recording sheets for ink jet printing | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4868098A | Method of processing exposed photographic silver dye bleach materials comprising heating after processing liquid application | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6420016B1 | Recording sheets for ink jet printing | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6780478B2 | Recording sheets for ink jet printing | Performing Operations; Transporting | 5 | Expired |
| US6660347B2 | Recording sheets for ink jet printing | Performing Operations; Transporting | 5 | Expired |
| US7906187B2 | Ink jet recording sheet with photoparity | Performing Operations; Transporting | 4 | Expired |
| US5141845A | Process for the spectral sensitization of photographic silver halide emulsions and products thereof | Physics | 3 | Expired |
| US4376817A | Direct-positive photographic material | Physics | 3 | Expired |
| US6589637B2 | Recording sheets for ink jet printing | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7250202B1 | Recording sheets for ink jet printing | Performing Operations; Transporting | 2 | Expired |
| US8389075B2 | Sulfur-containing inorganic media coatings for ink-jet applications | Performing Operations; Transporting | 2 | Active |
| US7824617B2 | Assembly comprising J aggregates | Emerging Cross-Sectional Technologies | 2 | Active |
| US4311786A | Novel sensitizers and their use in direct-positive photographic materials | Physics | 2 | Expired |
| US8053043B2 | Recording sheet for ink jet printing | Performing Operations; Transporting | 1 | Active |
| US7927675B2 | Recording sheets for ink jet printing | Chemistry; Metallurgy | 1 | Active |
| US7560173B2 | Electrically active films | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5077190A | Process for spectral sensitization of a silver halide emulsion | Physics | 1 | Expired |
| US7883753B2 | Recording sheets for ink jet printing | Performing Operations; Transporting | 1 | Active |
| US7435448B2 | Sulfur-containing inorganic media coatings for ink-jet applications | Performing Operations; Transporting | 1 | Expired |
| US4326021A | Photographic negative material with at least one layer containing a desensitized silver halide emulsion | Physics | 1 | Expired |
| US4803151A | Photographic material for the silver dye bleach process comprising an AZO dye, capable of laking, in gelatine | Physics | 1 | Expired |
| US4576885A | Photographic material for the silver dye bleach process | Physics | 0 | Expired |
| US8088929B2 | Method for producing J aggregates | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.