Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9770915 | Replaceable item authentication | Stephen D. Panshin, Jefferson P. Ward | 2017-09-26 |
| 9602583 | Supply item messaging | David B. Novak, Brian Woods, Huston W. Rice, Amy Shipman | 2017-03-21 |
| 9162442 | Image forming system and methods thereof | Huston W. Rice, David B. Novak | 2015-10-20 |
| 8911069 | Ink cartridge source identification determination | David B. Novak | 2014-12-16 |
| 8864277 | Authentication systems and methods | Huston W. Rice, David B. Novak | 2014-10-21 |
| 8474943 | Secure access to fluid cartridge memory | Kevin Bruce, Trudy Benjamin, Joseph M. Torgerson | 2013-07-02 |
| 7467862 | Interconnect circuit | Naoto Kawamura, William Eaton, Charles R. Headrick | 2008-12-23 |
| 7399047 | Consumable cartridge with theft deterrence features | Jefferson P. Ward, Mark D. Lund, Steven T. Castle | 2008-07-15 |
| 7375997 | Device identification using a programmable memory circuit | Hugh Rice, Volker Smektala, Sam Sarmast | 2008-05-20 |
| 7350911 | Cartridge tape removal method | Jefferson P. Ward, Teresa Cray | 2008-04-01 |
| 7137690 | Interconnect circuit | Naoto Kawamura, William Eaton, Charles R. Headrick | 2006-11-21 |
| 7108357 | Device identification using a programmable memory circuit | Hugh Rice, Volker Smektala, Sam Sarmast | 2006-09-19 |
| 7101029 | Interconnect circuit | Naoto Kawamura, William Eaton, Charles R. Headrick | 2006-09-05 |
| 7097271 | Printhead calibration | Volker Smektala, Naoto Kawamura | 2006-08-29 |
| 6926397 | Cartridge tape removal apparatus and method | Jefferson P. Ward, Teresa Cray | 2005-08-09 |
| 6847466 | Printing method | Charles J. Gazdik, Shell S. Simpson, Lainye Reich, David Hall, Sherri L. Brown +3 more | 2005-01-25 |
| 6474772 | Method of determining thermal turn on energy | Naoto Kawamura | 2002-11-05 |
| 6134567 | High resolution alphanumeric character generation | Raj Nakkiran, Donald J. Clark | 2000-10-17 |