Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6307085 | Process and composition for generation of acid | Jurgen M. Grasshoff, John Marshall, Richard A. Minns, Socorro M. Ramos, Stephen G. Stroud +3 more | 2001-10-23 |
| 6242154 | Process and composition for generation of acid | Jurgen M. Grasshoff, John Marshall, Richard A. Minns, Socorro M. Ramos, Stephen G. Stroud +3 more | 2001-06-05 |
| 6110638 | Process and composition for generation of acid | Jurgen M. Grasshoff, Eric S. Kolb, John Marshall, Richard A. Minns, Socorro M. Ramos +3 more | 2000-08-29 |
| 5914213 | Process and composition for generation of acid | Jurgen M. Grasshoff, John Marshall, Richard A. Minns, Socorro M. Ramos, Stephen G. Stroud +3 more | 1999-06-22 |
| 5667943 | Process for thermochemical generation of acid and for thermal imaging, and imaging medium for use therein | Jurgen M. Grasshoff, Mark R. Mischke, Anthony J. Puttick, Stephen J. Telfer, David P. Waller +1 more | 1997-09-16 |
| 5534393 | Process for thermochemical generation of acid and for thermal imaging | Jurgen M. Grasshoff, Mark R. Mischke, Anthony J. Puttick, Stephen J. Telfer, David P. Waller +1 more | 1996-07-09 |
| 5451478 | Slide blank, and process for producing a slide therefrom | Yves G. Conturie, Edward P. Lindholm, Warren D. Slafer, Stephen J. Telfer, Michael J. Zuraw | 1995-09-19 |
| 5424475 | Thermal imaging dye precursors | Alan L. Borror, Patrick R. Conlon, Richard L. Cournoyer, Ernest W. Ellis, David P. Waller | 1995-06-13 |
| 5422230 | Slide blank, and process for producing a slide therefrom | Warren D. Slafer, Stephen J. Telfer, Michael J. Zuraw | 1995-06-06 |
| 5401619 | Process for thermochemical generation of acid and for thermal imaging, and imaging medium for use therein | Jurgen M. Grasshoff, Mark R. Mischke, Anthony J. Puttick, Stephen J. Telfer, David P. Waller +1 more | 1995-03-28 |
| 5350870 | Thermal imaging methods and materials | Richard L. Cournoyer, Ernest W. Ellis, Sandra E. Russo-Rodriguez, Stephen J. Telfer, David P. Waller +1 more | 1994-09-27 |
| 5278031 | Process for thermochemical generation of squaric acid and for thermal imaging, and imaging medium for use therein | Jurgen M. Grasshoff, Mark R. Mischke, Anthony J. Puttick, Stephen J. Telfer, David P. Waller +1 more | 1994-01-11 |
| 5236884 | Thermal imaging methods and materials | Richard L. Cournoyer, Ernest W. Ellis, Sandra E. Russo-Rodriguez, Stephen J. Telfer, David P. Waller +1 more | 1993-08-17 |
| 5192645 | Thermal imaging method | Alan L. Borror, Patrick R. Conlon, Richard L. Cournoyer, Ernest W. Ellis, David P. Waller | 1993-03-09 |
| 4946964 | Photographic compounds | John B. Mahoney, Avinash C. Mehta, William C. Schwarzel, Lloyd D. Taylor | 1990-08-07 |
| 4847383 | Photographic reagent tetrazoles | James R. Bartels-Keith, Anthony J. Puttick, Nancy M. Sofen | 1989-07-11 |
| 4743533 | Photographic system utilizing a compound capable of providing controlled release of photographically useful group | John B. Mahoney, Avinash C. Mehta, William C. Schwarzel, Lloyd D. Taylor | 1988-05-10 |
| 4503139 | Photographic products and processes and novel compounds | James R. Bartels-Keith, Anthony J. Puttick, Nancy M. Sofen | 1985-03-05 |