Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5971529 | Automatic ink interconnect between print cartridge and carriage | Ted Lee, Jaren D. Marler, Winthrop D. Childers | 1999-10-26 |
| 5966155 | Inkjet printing system with off-axis ink supply having ink path which does not extend above print cartridge | Ted Lee, Jaren D. Marler, Winthrop D. Childers | 1999-10-12 |
| 5923353 | Fail-safe, backup valve in a pressurized ink delivery apparatus | Melissa D. Boyd | 1999-07-13 |
| 5872584 | Apparatus for providing ink to an ink-jet print head and for compensating for entrapped air | Mark Hauck | 1999-02-16 |
| 5856840 | Method of manufacturing a replaceable ink supply for an ink-jet printer | John A. Barinaga, Bruce Cowger | 1999-01-05 |
| 5852459 | Printer using print cartridge with internal pressure regulator | Mark Hauck, John A. Barinaga | 1998-12-22 |
| 5847734 | Air purge system for an ink-jet printer | — | 1998-12-08 |
| 5844577 | Back pressure regulator ink-jet pen | — | 1998-12-01 |
| 5825387 | Ink supply for an ink-jet printer | Bruce Cowger, John A. Barinaga | 1998-10-20 |
| 5812168 | Air purging of a pressure regulated free-ink ink-jet pen | Ronald W. Hall | 1998-09-22 |
| 5788753 | Polyamines complexed to anionic dyes, thereby forming water-soluble cationic dyes | David J. Halko, Joseph W. Tsang, Kimberly L. Hockaday Dahm | 1998-08-04 |
| 5777647 | Side-loaded pressure regulated free-ink ink-jet pen | Melissa D. Boyd | 1998-07-07 |
| 5736992 | Pressure regulated free-ink ink-jet pen | — | 1998-04-07 |
| 5734401 | Fluid interconnect for coupling a replaceable ink supply with an ink-jet printer | James E. Clark, David O. Merrill | 1998-03-31 |
| 5691755 | Collapsible ink cartridge | Bruce Cowger | 1997-11-25 |
| 5690722 | Use of tetrafluoropropanol as co-solvent in ink-jet ink vehicles | — | 1997-11-25 |
| 5646664 | Ink container valving | — | 1997-07-08 |
| 5626655 | Use of co-surfactants to adjust properties of ink-jet inks | Loren E. Johnson, Hiang P. Lauw, James P. Shields, Zia Rehman | 1997-05-06 |
| 5606988 | Connector assembly for ink cartridge | — | 1997-03-04 |
| 5583545 | Ink level detection in a pressure regulated pen | Mark Hauck, Bruce Cowger, Steven B. Elgee, Paul D. Gast | 1996-12-10 |
| 5536306 | Thermal ink-jet inks having reduced black to color and color to color bleed | Loren E. Johnson, Hiang P. Lauw, James P. Shields, John M. Skene | 1996-07-16 |
| 5467117 | Addition of alcohol to prewet solutions to enhance and accelerate wetting to hydrophobic foams for application to ink-jet pens | Roger F. Evans, Charles L. Thierheimer, Jr. | 1995-11-14 |
| 5230733 | Polymeric reactive dyes and inks formulated by insolubilizing reactions initiated by loss of water | — | 1993-07-27 |
| 5165968 | Ink composition having rapid dry time and high print quality for plain paper printing | Loren E. Johnson, Kenneth A. Norton, Margaret L. Wooding | 1992-11-24 |
| 5108502 | Boronic acid dyes | Dale D. Russell, Karla M. Robotti | 1992-04-28 |