Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578235 | Universal inside-outside door handle | Leroy G. Krupke, Richard K. Hoofard, Thomas S. Skinner | 2003-06-17 |
| 6408926 | Sectional door reinforcement system and method | Richard K. Hoofard, Ted Lefkovits | 2002-06-25 |
| 5781680 | Sealed optical fiber connector adapter | Michael de Jong, David T. Underwood | 1998-07-14 |
| 5640476 | Guide sleeve for fiber optic cable | Sean M. Kerr, Michael de Jong | 1997-06-17 |