Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D580748 | Molded clamp | Donald J. Polak | 2008-11-18 |
| D530906 | Axe scabbard | Donald J. Polak | 2006-10-31 |
| D521366 | Molded clamp | Donald J. Polak | 2006-05-23 |
| 5740737 | Handstamping apparatus | Donald J. Polak, Robert E. Ponter | 1998-04-21 |
| D355219 | Copyholder | Bruce S. Jones, William A. Putman | 1995-02-07 |
| 5339122 | Overhead projector with automatic document positioner | Donald J. Polak | 1994-08-16 |
| 5238112 | File box for video cassettes | Carl Massey, Jeffrey D. Bell, Kenneth E. McDonald | 1993-08-24 |
| 5193701 | Box for storing hanging file folders | Stephen A. Anderson | 1993-03-16 |
| D315929 | Bi-plane rocking toy | — | 1991-04-02 |
| 4534109 | Scissors | Charles L. Dellinger, Gerald Fregeolle | 1985-08-13 |