Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D588691 | Eyewash device | Timothy E. Perrin, Theodore E. Dhein, James A. Piper | 2009-03-17 |
| D572585 | Cap | Timothy E. Perrin, Theodore E. Dhein, James A. Piper | 2008-07-08 |
| D552498 | Electronic scale | Jeffrey D. Roesmann | 2007-10-09 |
| D503728 | Folding machine | Jason Grochowski | 2005-04-05 |
| D486573 | Hand held oral irrigator | Roberta L. Callaghan, Charles Y. Choi, Clifford J. Snyder, Gary L. Sokol | 2004-02-10 |
| D470589 | Dental X-ray tube head | Charles Y. Choi, Arkady Kantor | 2003-02-18 |
| D470237 | Split yoke for a dental X-ray unit | Charles Y. Choi, Arkady Kantor | 2003-02-11 |
| D469182 | Dental x-ray unit | Charles Y. Choi, Arkady Kantor | 2003-01-21 |
| D450110 | Humidifier | James G. Montagnino, Les Dobrzanski, Charles Y. Choi, Jason P. Grochowski | 2001-11-06 |