Issued Patents All Time
Showing 51–75 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476750 | Metal ion reduction in the raw materials and using a Lewis base to control molecular weight of novolak resin to be used in positive photoresists | M. Dalil Rahman, Ping-Hung Lu, Daniel P. Aubin, Dana L. Durham | 1995-12-19 |
| 5424166 | Negative-working radiation-sensitive mixture containing diazomethane acid generator and a radiation-sensitive recording material produced therfrom | Georg Pawlowski, Horst Roeschert, Walter Spiess, Winfried Meier | 1995-06-13 |
| 5403697 | Positive radiation-sensitive mixture and recording material produced therefrom | Karl-Friedrich Doessel, Juergen Lingnau | 1995-04-04 |
| 5401608 | Negative-working radiation-sensitive mixture and radiation-sensitive recording material produced therewith | Georg Pawlowski, Horst Roeschert, Winfried Meier, Walter Spiess, Klaus-Juergen Przybilla | 1995-03-28 |
| 5348842 | Method for producing positive photoresist image utilizing diazo ester of benzolactone ring compound and diazo sulfonyl chloride | Dinesh N. Khanna, Douglas McKenzie, Chester J. Sobodacha | 1994-09-20 |
| 5346806 | Acid-cleavable radiation-sensitive compounds, radiation-sensitive mixture containing these compounds, and radiation-sensitive recording material produced with this mixture | Georg Pawlowski, Horst Roeschert, Walter Spiess, Charlotte Eckes | 1994-09-13 |
| 5346804 | Acid-cleavable radiation-sensitive compounds, positive working radiation-sensitive mixture containing theses compounds, and radiation-sensitive recording material produced with this mixture | Geog Pawlowski, Horst Roeschert, Walter Spiess, Charlotte Eckes | 1994-09-13 |
| 5342727 | Copolymers of 4-hydroxystyrene and alkyl substituted-4-hydroxystyrene in admixture with a photosensitizer to form a photosensitive composition | Richard Vicari, Douglas J. Gordon, William D. Hinsberg, Dennis McKean, Carlton G. Willson | 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, Juergen Lingnau, 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, Juergen Lingnau, Horst Roeschert | 1994-08-16 |
| 5326826 | Radiation-sensitive polymers containing diazocarbonyl groups and a process for their preparation | Horst Roeschert, Hans-Joachim Merrem, Georg Pawlowski, Juergen Fuchs | 1994-07-05 |
| 5302488 | Radiation-sensitive polymers containing naphthoquinone-2-diazide-4-sulfonyl groups and their use in a positive working recording material | Horst Roeschert, Hans-Joachim Merrem, Georg Pawlowski, Juergen Fuchs | 1994-04-12 |
| 5286602 | Acid-cleavable compounds, positive-working radiation-sensitive mixture containing these compounds, and radiation-sensitive recording material produced with this mixture | Georg Pawlowski, Horst Roeschert, Walter Spiess | 1994-02-15 |
| 5256517 | Positive-working radiation-sensitive mixture and recording material for exposure to UV radiation containing polyfunctional compound having .alpha.-.beta.-keto ester units and sulfonate units | Horst Roeschert, Georg Pawlowski, Hans-Joachim Merrem, Walter Spiess | 1993-10-26 |
| 5247096 | Process for preparing N-tert-butoxycarbonylmaleimide | Horst Roeschert, Georg Pawlowski, Klaus-Juergen Przybilla | 1993-09-21 |
| 5234791 | Radiation-curable composition and radiation-sensitive recording material prepared therefrom for use with high-energy radiation | Karl-Friedrich Doessel, Juergen Lingnau, Juergen Theis | 1993-08-10 |
| 5221592 | Diazo ester of a benzolactone ring compound and positive photoresist composition and element utilizing the diazo ester | Dinesh N. Khanna, Douglas McKenzie, Chester J. Sobodacha | 1993-06-22 |
| 5217843 | Positive radiation-sensitive mixture, and radiation-sensitive recording material produced therefrom for high-energy radiation | Juergen Lingnau, Georg Pawlowski, Juergen Theis | 1993-06-08 |
| 5198322 | Positively operating radiation-sensitive mixture containing a polyfunctional .alpha.-diazo-.beta.-keto ester and radiation-sensitive recording material containing this mixture | Peter Wilharm, Hans-Joachim Merrem, Georg Pawlowski | 1993-03-30 |
| 5191069 | Polyfunctional compounds containing .alpha.-diazo-.beta.-keto ester units and sulfonate units | Horst Roeschert, Georg Pawlowski, Hans-Joachim Merrem | 1993-03-02 |
| 5072025 | Process for the production of 3,5-disubstituted-4-acetoxystyrene | Richard Vicari, Mohammad Aslam, Wilson B. Ray, Kenneth G. Davenport, Juergen Lingnau +1 more | 1991-12-10 |
| 4965400 | Preparation of 3,5-disubstituted-4-acetoxystyrene | Richard Vicari, Mohammad Aslam, Wilson B. Ray, Kenneth G. Davenport, Juergen Lingnau +1 more | 1990-10-23 |
| 4946759 | Positive radiation-sensitive mixture and radiation-sensitive recording material produced therefrom | Karl-Friedrich Doessel, Juergen Lingnau | 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, Juergen Lingnau, 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, Juergen Lingnau +1 more | 1990-05-22 |