Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9968350 | Blunted safety needle | John A. Rotella, Nathan C. Griffith, Donald J. McMichael | 2018-05-15 |
| 8147449 | Device for gastric feeding and drainage via an artificial stoma | Fred Göbel, Donald J. McMichael | 2012-04-03 |
| D600974 | Stemware | — | 2009-09-29 |
| D590214 | Utensil | — | 2009-04-14 |
| D573407 | Serving tray | — | 2008-07-22 |
| D572536 | Serving tray | — | 2008-07-08 |
| D540622 | Serving tray | — | 2007-04-17 |
| 5297310 | Cleaning brush for endoscopes | Dennis Cox | 1994-03-29 |
| 5133361 | Biopsy brush | Dennis Cox | 1992-07-28 |
| 5097728 | Biopsy forceps jaw and method for making it | Dennis Cox | 1992-03-24 |