Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6911293 | Photoresist compositions comprising acetals and ketals as solvents | Joseph E. Oberlander, Robert Plass, Douglas McKenzie | 2005-06-28 |
| 6512087 | Fractionation of resins using a static mixer and a liquid-liquid centrifuge | M. Dalil Rahman, Zhong Xiang | 2003-01-28 |
| 6451491 | Aqueous developable negative acting photosensitive composition having improved image contrast | Major S. Dhillon, Gerhard Sprintschnik | 2002-09-17 |
| 6297352 | Method of reducing metal ion content of film-forming resins using a liquid/liquid centrifuge | M. Dalil Rahman | 2001-10-02 |
| 6121412 | Preparation of fractionated novolak resins by a novel extraction technique | M. Dalil Rahman, John J. Kokoszka, Balaji Narasimhan | 2000-09-19 |
| 6103443 | Photoresist composition containing a novel polymer | Kathryn Jensen, Ping-Hung Lu, Douglas McKenzie | 2000-08-15 |
| 5928836 | Fractionated novolak resin copolymer and photoresist composition therefrom | M. Dalil Rahman, Michelle Cook, Douglas McKenzie, Sunit S. Dixit | 1999-07-27 |
| 5853947 | Quinonediazide positive photoresist utilizing mixed solvent consisting essentially of 3-methyl-3-methoxy butanol and propylene glycol alkyl ether acetate | M. Dalil Rahman, Dinesh N. Khanna, Daniel P. Aubin, Sunit S. Dixit | 1998-12-29 |
| 5432046 | Process for preparing improved lithographic printing plates by brushgraining with alumina/quartz slurry | Major S. Dhillon, Gerhard Sprintschnik, Allen W. Loveland, Dennis A. King | 1995-07-11 |
| 5429903 | Water developable, negative working overlay or transfer type diazo color proofing film | — | 1995-07-04 |
| 5348834 | Water developable, negative working overlay color proofing system utilizing water soluble polymeric diazonium compound; water insoluble, water swellable binder resin; and a colorant | — | 1994-09-20 |
| 5212041 | Water developable, negative working overlay color proofing system utilizing water soluble polymeric diazonium compound and water insoluble, water swellable, binder resin | — | 1993-05-18 |
| 5200291 | Photosensitive diazonium resin, element made therefrom, method of preparing the resin and method for producing negative lithographic image utilizing the resin | — | 1993-04-06 |
| 4999266 | Protected color image on substrate with thermal adhesive and antiblocking overlayers | Stephan J. W. Platzer, Mehmet U. Yener | 1991-03-12 |
| 4935331 | Pigment transfer to photopolymerizable positive-working imaging system | Stephan J. W. Platzer | 1990-06-19 |
| 4914039 | Water developable, negative working overlay or transfer type diazo color proofing system | — | 1990-04-03 |
| 4719169 | Protective coating for images | Stephan J. W. Platzer, Mehmet U. Yener | 1988-01-12 |
| 4452674 | Electrolytes for electrochemically treated metal plates | Thomas N. Gillich, John E. Walls, William J. Rozell | 1984-06-05 |
| 4448647 | Electrochemically treated metal plates | Thomas N. Gillich, John E. Walls, William J. Rozell | 1984-05-15 |
| 4399021 | Novel electrolytes for electrochemically treated metal plates | Thomas N. Gillich, John E. Walls, William J. Rozell | 1983-08-16 |
| 4383897 | Electrochemically treated metal plates | Thomas N. Gillich, John E. Walls, William J. Rozell | 1983-05-17 |
| 4374920 | Positive developer containing non-ionic surfactants | Shane Hsieh | 1983-02-22 |