Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564428 | Compound hinge | John E. Richard, Wallace H. Polzin, Clifford A. Klinger, William J. Nepsha, Marvin J. Thibodeau | 2003-05-20 |
| 5722121 | Enclosure hinge | Robert G. Lau | 1998-03-03 |
| 5465528 | Cabinet with overlapping doors | Robert G. Lau | 1995-11-14 |