Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6419353 | Magenta ink formulation | Hiang P. Lauw | 2002-07-16 |
| 6248161 | Preparation of permanent color inks from water-soluble colorants using specific phosphonium salts | Khe C. Nguyen, Sivapackia Ganapathiappan | 2001-06-19 |
| 6139139 | Color inkjet printer with pens containing reactive inks | John L. Stoffel, James P. Shields, Mark S. Hickman, Mark L. Choy | 2000-10-31 |
| 6036759 | Black to color bleed control in ink-jet printing inks | Palitha Wickramanayake | 2000-03-14 |
| 5785743 | Bleed alleviation in ink-jet inks using organic acids | James P. Shields, Mark H. Kowalski | 1998-07-28 |
| 5700317 | Bleed control in ink-jet inks via aqueous phase separation | — | 1997-12-23 |
| 5688311 | Ink jet inks containing long chain alcohols | — | 1997-11-18 |
| 5431724 | Low water content inks for minimizing wet cockle in thermal ink-jet inks | Garold E. Radke | 1995-07-11 |
| 5320668 | Bleed alleviation using pH-sensitive agents | James P. Shields | 1994-06-14 |
| 5188664 | Anti-coalescent ink composition and method for making the same | Theresa A. Gibney | 1993-02-23 |
| 5181045 | Bleed alleviation using pH-sensitive dyes | James P. Shields | 1993-01-19 |
| 5062893 | Ink formulations by mixing anionic waterfast dyes containing two or more carboxyl groups | Palitha Wickramanayake, Suraj L. Hindagolla, Garold E. Radke, David J. Halko | 1991-11-05 |
| 5006862 | Fixation of reactive dyes to paper by ink-jet printing | — | 1991-04-09 |