Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7301055 | Process for removing methanol from formaldehyde-containing solutions | Michael Hoffmockel, Matthias Göring, Karl-Friedrich Muck | 2007-11-27 |
| 5614351 | Radiation-curable mixture, and radiation-sensitive recording material produced therefrom for high-energy radiation | Ralph R. Dammel, Georg Pawlowski, Juergen Theis | 1997-03-25 |
| 5403697 | Positive radiation-sensitive mixture and recording material produced therefrom | Karl-Friedrich Doessel, Ralph R. Dammel | 1995-04-04 |
| 5342582 | Apparatus for reprocessing special waste | Klaus Horn, Horst Weiler | 1994-08-30 |
| 5340682 | Positive-working radiation-sensitive mixture and copying material produced therefrom comprising an .alpha.-carbonyl-.alpha.-sulfonyl diazomethane, a water-insoluble binder and an acid cleavable compound | Georg Pawlowski, Hans-Joachim Merrem, Ralph R. Dammel, Horst Roeschert | 1994-08-23 |
| 5338641 | Positive-working radiation-sensitive mixture and copying material produced therefrom comprising an .alpha.,.alpha.-bis(sulfonyl) diazo methane as an acid forming compound | Georg Pawlowski, Hans-Joachim Merrem, Ralph R. Dammel, Horst Roeschert | 1994-08-16 |
| 5234791 | Radiation-curable composition and radiation-sensitive recording material prepared therefrom for use with high-energy radiation | Ralph R. Dammel, Karl-Friedrich Doessel, Juergen Theis | 1993-08-10 |
| 5221595 | Photopolymerizable mixture and recording material prepared therefrom | Hans-Dieter Frommeld | 1993-06-22 |
| 5217843 | Positive radiation-sensitive mixture, and radiation-sensitive recording material produced therefrom for high-energy radiation | Ralph R. Dammel, Georg Pawlowski, Juergen Theis | 1993-06-08 |
| 5137799 | Electrically conductive resist material, a process for its preparation and its use | Guenther Kaempf, Michael Feldhues, Ude Scheunemann | 1992-08-11 |
| 5072025 | Process for the production of 3,5-disubstituted-4-acetoxystyrene | Richard Vicari, Mohammad Aslam, Wilson B. Ray, Kenneth G. Davenport, Ralph R. Dammel +1 more | 1991-12-10 |
| 5025097 | 4-chlorooxazole derivatives and processes for their preparation and use | Rainer Wingen, Dieter Guenther | 1991-06-18 |
| 4988606 | Negative-working radiation-sensitive mixture with polymer having 1,2,3-thiadiazole groups, and recording material produced therefrom | Werner Prass, Rudolf Zertani, Norbert Hanold | 1991-01-29 |
| 4965400 | Preparation of 3,5-disubstituted-4-acetoxystyrene | Richard Vicari, Mohammad Aslam, Wilson B. Ray, Kenneth G. Davenport, Ralph R. Dammel +1 more | 1990-10-23 |
| 4946759 | Positive radiation-sensitive mixture and radiation-sensitive recording material produced therefrom | Karl-Friedrich Doessel, Ralph R. Dammel | 1990-08-07 |
| 4933495 | Process for the production of 3-mono or 3,5 dihalogenated 4-acetoxystyrene, its polymerization, and hydrolysis | Mohammad Aslam, Richard Vicari, Ralph R. Dammel, Karl-Friedrich Doessel | 1990-06-12 |
| 4927956 | 3,5-disubstituted-4-acetoxystyrene and process for its production | Richard Vicari, Mohammad Aslam, Wilson B. Ray, Kenneth G. Davenport, Ralph R. Dammel +1 more | 1990-05-22 |
| 4892799 | 4-chlorooxazole derivatives and processes for their preparation and use | Rainer Wingen, Dieter Guenther | 1990-01-09 |
| 4869983 | Sulfonyl-containing styrene derivatives and their use in electrophotographic processes | Albert Bender, Dieter Guenther | 1989-09-26 |
| 4868257 | Process for the production of 3-mono or 3,5 disubstituted-4-acetoxystyrene, its polymerization | Mohammad Aslam, Richard Vicari, Ralph R. Dammel, Karl-Friedrich Doessel | 1989-09-19 |
| 4868256 | Process for the production of 3-mono or 3,5-disubstituted-4-acetoxystyrene its polymerization, and hydrolysis | Mohammad Aslam, Richard Vicari, Ralph R. Dammel, Karl-Friedrich Doessel | 1989-09-19 |
| 4780680 | Process for the continuous, contact-free measurement of layer thicknesses and apparatus for performing the process | Klaus Reuter | 1988-10-25 |
| 4684594 | Electrophotographic process for preparing printing forms using alkaline decoater solution | Klaus Schmitt, Klaus Schoen, Peter Riedel, Engelbert Pliefke | 1987-08-04 |
| 4654283 | Electrophotographic recording material having a photoconductive double layer, and process for its manufacture | Karl-Friedrich Doessel | 1987-03-31 |