Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8857933 | Ink supply reservoir | Kevin Campion, Aaron Barclay, Chad E. Beery | 2014-10-14 |
| 7866810 | Ink jet printer | Kevin Campion, Aaron Barclay, Chad E. Beery, Christian Vasbo, Corrine Ruether +5 more | 2011-01-11 |
| RE36452 | Composite seal for rotary cone rock bits | Robert G. Upton, Michael Hooper, Jerry Pyka, Robert X. Chambers, Gary R. Portwood | 1999-12-21 |
| 5825394 | Thermal print head calibration and operation method for fixed imaging elements | J. Mark Gilbert, Danny J. Vatland | 1998-10-20 |
| 5362073 | Composite seal for rotary cone rock bits | Robert G. Upton, Michael F. Hooper, Gary R. Portwood, Jerry Pyka, Robert X. Chambers | 1994-11-08 |