Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9511598 | Recirculation of ink | Robert Lee Wells, Bailey Smith, Marlene McDonald, Matthew Aubrey, John T. Kelly +2 more | 2016-12-06 |
| 9144993 | Recirculation of ink | Robert Lee Wells, Bailey Smith, Marlene McDonald, Matthew Aubrey, John T. Kelly +2 more | 2015-09-29 |
| 8752946 | Recirculation of ink | Robert Lee Wells, Bailey Smith, Marlene McDonald, Matthew Aubrey, John T. Kelly +2 more | 2014-06-17 |
| 8579397 | Jet performance | Steven H. Barss, Paul A. Hoisington | 2013-11-12 |
| 8480196 | Method and apparatus to eject drops having straight trajectories | Xi Wang, Robert Hasenbein, Marlene McDonald, Jaan T. Laaspere | 2013-07-09 |
| 8317284 | Method and apparatus to provide variable drop size ejection by dampening pressure inside a pumping chamber | Robert Hasenbein | 2012-11-27 |
| 7988247 | Ejection of drops having variable drop size from an ink jet printer | Robert Hasenbein, Deane A. Gardner | 2011-08-02 |