Siegfried Thurm
14Patents
8h-index
25Co-inventors
72Inventor score
Filing activity: Oct 16, 1978 → Jun 9, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4279502A | Method of and apparatus for determining the copying light amounts for copying from color originals | Physics | 35 | Expired |
| US4589766A | Copying method and arrangement for colored originals | Physics | 28 | Expired |
| US4422752A | Method of and an apparatus for classifying color films | Physics | 18 | Expired |
| US4274732A | Method and apparatus for making reproductions of color film frames | Physics | 17 | Expired |
| US5487810A | Process for pretreating surfaces of plastic items | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4217648A | Method and apparatus for evaluating color photographic negatives prior to copying | Physics | 17 | Expired |
| US6294726A | Silicon with structured oxygen doping, its production and use | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5008148A | Process for the production of plastic moulded articles with improved weathering resistance | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5552226A | Process for pretreating surfaces of plastic items | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5705267A | Thermostable polarizers | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5152879A | Process for the treatment of polyolefin films | Chemistry; Metallurgy | 4 | Expired |
| US4344704A | Method of determining correction parameters for use in light-amount adjustment in a color copying operation | Physics | 4 | Expired |
| US5874180A | Electroluminescent arrangements and their use | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5102740A | Synthetic resin bodies with improved resistance to weathering | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.