Issued Patents All Time
Showing 26–50 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6305790 | Fully integrated thermal inkjet printhead having multiple ink feed holes per nozzle | Naoto Kawamura, Colin C. Davis, Timothy L. Weber, John Paul Harmon, David R. Thomas | 2001-10-23 |
| 6227660 | Printhead with pump driven ink circulation | Paul H. McClelland | 2001-05-08 |
| 6183076 | Printer having multi-chamber print cartridges and off-carriage regulator | Winthrop D. Childers, Norman E. Pawlowski, Jr., Dale Timm | 2001-02-06 |
| 6179414 | Ink delivery system for an inkjet printhead | Brian J. Keefe, Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland | 2001-01-30 |
| 6017117 | Printhead with pump driven ink circulation | Paul H. McClelland | 2000-01-25 |
| 6003977 | Bubble valving for ink-jet printheads | Timothy L. Weber, David J. Waller, David R. Thomas | 1999-12-21 |
| 6000787 | Solid state ink jet print head | Timothy L. Weber, John Paul Harmon | 1999-12-14 |
| 5988786 | Articulated stress relief of an orifice membrane | David J. Waller, Timothy L. Weber, Hai Quang Tran | 1999-11-23 |
| 5953029 | Ink delivery system for an inkjet printhead | Brian J. Keefe, Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland | 1999-09-14 |
| 5648805 | Inkjet printhead architecture for high speed and high resolution printing | Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more | 1997-07-15 |
| 5648804 | Compact inkjet substrate with centrally located circuitry and edge feed ink channels | Brian J. Keefe, Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland | 1997-07-15 |
| 5638101 | High density nozzle array for inkjet printhead | Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more | 1997-06-10 |
| 5635966 | Edge feed ink delivery thermal inkjet printhead structure and method of fabrication | Brian J. Keefe, Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland, Duane Fasen +7 more | 1997-06-03 |
| 5635968 | Thermal inkjet printer printhead with offset heater resistors | Eldurkar V. Bhaskar, Marzio Leban, Ulrich Hess, Niels J. Nielsen, Ellen R. Tappon +1 more | 1997-06-03 |
| 5625396 | Ink delivery method for an inkjet print cartridge | Brian J. Keefe, Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland | 1997-04-29 |
| 5619236 | Self-cooling printhead structure for inkjet printer with high density high frequency firing chambers | Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more | 1997-04-08 |
| 5608436 | Inkjet printer printhead having equalized shelf length | Kit Baughman, Jeffrey A. Kahn, Paul H. McClelland, Ellen R. Tappon | 1997-03-04 |
| 5604519 | Inkjet printhead architecture for high frequency operation | Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more | 1997-02-18 |
| 5594481 | Ink channel structure for inkjet printhead | Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more | 1997-01-14 |
| 5563642 | Inkjet printhead architecture for high speed ink firing chamber refill | Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more | 1996-10-08 |
| 5560837 | Method of making ink-jet component | — | 1996-10-01 |
| 5519423 | Tuned entrance fang configuration for ink-jet printers | Jules G. Moritz, III, William R. Knight | 1996-05-21 |
| 5441593 | Fabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachining | Kit Baughman, Jeffrey A. Kahn, Paul H. McClelland, Ellen R. Tappon | 1995-08-15 |
| 5420627 | Inkjet printhead | Brian J. Keefe, Winthrop D. Childers, Steven W. Steinfield, Paul H. McClelland | 1995-05-30 |
| 5417897 | Method for forming tapered inkjet nozzles | Stuart D. Asakawa, Paul H. McClelland, Ellen R. Tappon, Richard R. Vandepoll, Chien-Hua Chen | 1995-05-23 |