Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658794 | Guide assembly for a tilt-out sash window | Thomas Hänsel, Julie K. Earp, Charles H. Graham, George E. Heid | 2003-12-09 |
| D463301 | Tape measure marking accessory | Bradley J. Burie | 2002-09-24 |
| 6135511 | Window locking system | Michael D. Smith, William R. Kuersten, Scott Rote | 2000-10-24 |
| 5927767 | Window locking system | Michael D. Smith, William R. Kuersten, Scott Rote | 1999-07-27 |
| 5382060 | Latching apparatus for double doors | James O'Toole, Todd W. Bruchu, Scott R. Beske | 1995-01-17 |
| 4798016 | Picture pen | Arthur P. Venditti | 1989-01-17 |
| 4273458 | Writing implement | James W. Mansheim | 1981-06-16 |