Thurm, Siegfried
Patent Applications and Registrations
Patent applications and USPTO patent grants for Thurm, Siegfried.The latest application filed is for "process for coating a substrate".
- Thurm, Siegfried - Meerbusch DE
- Thurm; Siegfried - Voiswinkel DE
| Patent | Date |
|---|---|
| Process for coating a substrate App 20050153146 - Thurm, Siegfried ; et al. | 2005-07-14 |
| Silicon with structured oxygen doping, its production and use Grant 6,294,726 - Hassler , et al. September 25, 2 | 2001-09-25 |
| Thermostable polarizers Grant 5,705,267 - Starzewski , et al. January 6, 1 | 1998-01-06 |
| Process for pretreating surfaces of plastic items Grant 5,487,810 - Thurm , et al. January 30, 1 | 1996-01-30 |
| Process for the treatment of polyolefin films Grant 5,152,879 - Thurm , et al. October 6, 1 | 1992-10-06 |
| Method of and an apparatus for classifying color films Grant 4,422,752 - Thurm , et al. December 27, 1 | 1983-12-27 |
| Method and apparatus for making reproductions of color film frames Grant 4,274,732 - Thurm , et al. June 23, 1 | 1981-06-23 |
| Method and apparatus for evaluating color photographic negatives prior to copying Grant 4,217,648 - Thurm , et al. August 12, 1 | 1980-08-12 |
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