Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494850 | Window operator cover | Brian Dallmann | 2004-08-24 |
| 5741031 | Concealed window lock with detachable handle and escutcheon | Leonard P. Bauman, Eric P. Heim, Joseph P. Landherr | 1998-04-21 |
| D388689 | Window lock handle and escutcheon | Leonard P. Bauman, Eric P. Heim, Joseph P. Landherr | 1998-01-06 |
| 4991886 | Window lock | Douglas A. Nolte | 1991-02-12 |