Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158851 | Ink valve having a releasable tip for a print cartridge recharge system | — | 2000-12-12 |
| 6000791 | Printer having a removable print cartridge with handle incorporating an ink inlet value | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Schultz | 1999-12-14 |
| 5966156 | Refilling technique for inkjet print cartridge having two ink inlet ports for initial filling and recharging | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Shultz +1 more | 1999-10-12 |
| 5963238 | Intermittent refilling of print cartridge installed in an inkjet printer | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Schultz +1 more | 1999-10-05 |
| 5929883 | Printing system with single on/off control valve for periodic ink replenishment of inkjet printhead | Max S. Gunther, Ignacio Olazabal, Mark E. Young, Elizabeth Zapata, Joseph E. Scheffelin +1 more | 1999-07-27 |
| 5886719 | Ink valve having a releasable tip for a print cartridge recharge system | — | 1999-03-23 |
| 5874976 | Inkjet cartridge fill port adapter | Robert Joseph Katon, Max S. Gunther, Joseph E. Scheffelin, David S. Hunt, Mark E. Young +2 more | 1999-02-23 |
| 5852458 | Inkjet print cartridge having a first inlet port for initial filling and a second inlet port for ink replenishment without removing the print cartridge from the printer | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Schultz +1 more | 1998-12-22 |
| 5777648 | Inkjet print cartridge having an ink fill port for initial filling and a recharge port with recloseable seal for recharging the print cartridge with ink | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Schultz +1 more | 1998-07-07 |
| 5751320 | Ink recharger for inkjet print cartridge having sliding valve connectable to print cartridge | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Schultz +1 more | 1998-05-12 |
| 5748216 | Inkjet print cartridge having valve connectable to an external ink reservoir for recharging the print cartridge | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Shultz +1 more | 1998-05-05 |
| 5675367 | Inkjet print cartridge having handle which incorporates an ink fill port | Joseph E. Scheffelin, David S. Hunt, Mark E. Young, Elizabeth Zapata, Christopher J. Schultz | 1997-10-07 |
| 5596358 | Method and apparatus for refilling a print cartridge having a reservoir pressure of less than ambient pressure | David S. Hunt, Jon Fong, Joseph E. Scheffelin | 1997-01-21 |