Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5720802 | Process for preparing an ink composition | Carol A. Jennings | 1998-02-24 |
| 5643357 | Liquid crystalline ink compositions | Marcel P. Breton, William M. Schwarz, Yvan Gagnon, Stig E. Friberg | 1997-07-01 |
| 5492559 | Liquid crystalline microemulsion ink compositions | John F. Oliver, Marcel P. Breton, Stig E. Friberg, William M. Schwarz | 1996-02-20 |
| 5378574 | Inks and liquid developers containing colored silica particles | Francoise M. Winnik, Barkev Keoshkerian, Stephan V. Drappel, Melvin D. Crocher, James D. Mayo +1 more | 1995-01-03 |
| 5345254 | Ink jet printing process | Marcel P. Breton, Melvin D. Croucher, James M. Duff, T. Edward Petroff, William Riske +1 more | 1994-09-06 |
| 5208630 | Process for the authentication of documents utilizing encapsulated toners | H. Bruce Goodbrand, James M. Duff | 1993-05-04 |
| 5200290 | Liquid developers containing colored polymers with a color chromophore covalently bound thereto | Beng S. Ong, Melvin D. Croucher | 1993-04-06 |
| 5164232 | Ink compositions | Kerstin M. Henseleit, Marcel P. Breton, Irena Koziol, Melvin D. Croucher | 1992-11-17 |
| 5156675 | Ink for ink jet printing | Marcel P. Breton, Fatima M. Pontes, Kerstin M. Henseleit, Barbel Helbrecht, Melvin D. Croucher | 1992-10-20 |
| 5100469 | Ink compositions having decreased drying times | Fatima M. Pontes, Marcel P. Breton, Kerstin M. Henseleit, Melvin D. Croucher | 1992-03-31 |
| 5030535 | Liquid developer compositions containing polyolefin resins | Stephan V. Drappel, Timothy J. Fuller, Melvin D. Croucher, James D. Mayo | 1991-07-09 |
| 4960667 | Positively charged black liquid electrophotographic developer compositions | Stephan V. Drappel, Melvin D. Croucher | 1990-10-02 |
| 4880720 | Liquid developer compositions | Stephan V. Drappel, Melvin D. Croucher | 1989-11-14 |
| 4830945 | Liquid electrophotographic developer comprising oppositely charged toner particles and dyes of different colors | Stephan V. Drappel, Melvin D. Croucher | 1989-05-16 |
| 4822710 | Liquid developer compositions | Melvin D. Croucher, James M. Duff, John R. C. Fuler, George R. Pravato | 1989-04-18 |
| 4816370 | Developer compositions with stabilizers to enable flocculation | Melvin D. Croucher, Michael L. Hair | 1989-03-28 |
| 4797342 | Processes for the preparation of liquid developers with low vapor pressure components | Melvin D. Croucher, Stephan V. Drappel | 1989-01-10 |
| 4789616 | Processes for liquid developer compositions with high transfer efficiencies | Melvin D. Croucher, Christopher K. Ober, Michael L. Hair | 1988-12-06 |
| 4766049 | Latex based colored liquid developers | Melvin D. Croucher, James M. Duff, Michael L. Hair, John R. C. Fuller | 1988-08-23 |
| 4762764 | Liquid developer | Dominic S. Ng, Melvin D. Croucher | 1988-08-09 |
| 4680332 | Ink jet compositions and process for preparation thereof | Michael L. Hair, Kar P. Lok, Christopher K. Ober, Melvin D. Croucher | 1987-07-14 |
| 4476210 | Dyed stabilized liquid developer and method for making | Melvin D. Croucher, James M. Duff, Michael L. Hair, Kar P. Lok | 1984-10-09 |