Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6341853 | Continuous refill of spring bag reservoir in an ink-jet swath printer/plotter | Joseph E. Scheffelin, Mark E. Young, Elizabeth Zapata, Kenneth J. Courian, David W. Swanson +2 more | 2002-01-29 |
| 6206515 | Double compartment ink-jet cartridge with optimum snout | David W. Swanson, James G. Salter, W. Wistar Rhoads | 2001-03-27 |
| 6053607 | Negative pressure ink delivery system | David W. Swanson, James E. Clark, Tofigh Khodapanah | 2000-04-25 |
| 6030075 | Common ink-jet cartridge platform for different printheads | David W. Swanson, Timothy J. Carlin | 2000-02-29 |
| 6003984 | Ink-jet swath printer with auxiliary ink reservoir | Jaime H. Bohorquez, Kenneth J. Courian, James E. Clark, Tofigh Khodapanah, David W. Swanson +2 more | 1999-12-21 |
| 5898451 | Method for ink-jet printing using a collapsible ink reservoir structure and printer ink cartridge | David W. Swanson, Tofigh Khodapanah, James E. Clark | 1999-04-27 |
| 5870125 | Thin pen structure for thermal ink-jet printer | David W. Swanson, Timothy J. Carlin, John Paul Harmon | 1999-02-09 |
| 5767882 | Collapsible ink reservoir structure and printer ink cartridge | David W. Swanson, Tofigh Khodapanah, James E. Clark | 1998-06-16 |
| 5757390 | Ink volume sensing and replenishing system | Brian D. Gragg, Tofigh Khodapanah, David W. Swanson, James E. Clark | 1998-05-26 |
| 5757406 | Negative pressure ink delivery system | David W. Swanson, James E. Clark, Tofigh Khodapanah | 1998-05-26 |
| 5754207 | Volume indicating ink reservoir cartridge system | Brian D. Gragg, Tofigh Khodapanah, David W. Swanson, James E. Clark | 1998-05-19 |
| 5748215 | Ink-jet printer including ink cartridge with optimum snout and alignment surfaces | David W. Swanson, James G. Salter, W. Wistar Rhoads | 1998-05-05 |
| 5745137 | Continuous refill of spring bag reservoir in an ink-jet swath printer/plotter | Joseph E. Scheffelin, Mark E. Young, Elizabeth Zapata, Kenneth J. Courian, David W. Swanson +2 more | 1998-04-28 |
| 5712669 | Common ink-jet cartridge platform for different printheads | David W. Swanson, Timothy J. Carlin | 1998-01-27 |
| 5594483 | Ink-jet cartridge with ink filtration | David W. Swanson | 1997-01-14 |
| 5574490 | Ink jet hard copy apparatus ink cartridge | Brian D. Gragg, James E. Clark, David W. Swanson, Tofigh Khodapanah | 1996-11-12 |
| 5541632 | Ink pressure regulator for a thermal ink jet printer | Tofigh Khodapanah | 1996-07-30 |
| 5491502 | Thin pen structure for thermal ink-jet printer | David W. Swanson, Timothy J. Carlin, John Paul Harmon | 1996-02-13 |
| 5448818 | Method of assembly of a collapsible ink reservoir structure | Joseph E. Scheffelin, David W. Swanson, Tofigh Khodapanah, James E. Clark | 1995-09-12 |
| D361343 | Compact ink-jet print cartridge | Timothy J. Carlin, David W. Swanson, Mindy A. Hamlin | 1995-08-15 |
| 5440333 | Collapsible ink reservoir and ink-jet cartridge with protective bonding layer for the pressure regulator | James H. Sykora, Tofigh Khodapanah, David S. Hunt, Joseph E. Scheffelin, Amy V. Liew +2 more | 1995-08-08 |
| 5426459 | Combined filter/aircheck valve for thermal ink-jet pen | — | 1995-06-20 |
| D353156 | Compact ink-jet print cartridge | Timothy J. Carlin, David W. Swanson, Mindy A. Hamlin | 1994-12-06 |
| 5115250 | Wiper for ink-jet printhead | J. Paul Harmon | 1992-05-19 |
| 4959667 | Refillable ink bag | — | 1990-09-25 |