Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5946772 | Cover for a door closure | — | 1999-09-07 |
| 5836120 | Door having integrally formed weep hole for drainage | — | 1998-11-17 |
| 5829508 | Door closer and method | Walter B. Herbst, James E. Schooler, Gordon D. Hansen | 1998-11-03 |