Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7296360 | Surface mountable assembly for a line generating device | Karim El-Katcha, Robert E. McCracken, Allen Brelsford, Donald W. Zurwelle, Fred S. Watts | 2007-11-20 |
| 7266898 | Laser level | Karim El-Katcha, Robert E. McCracken, Allen Brelsford, Donald W. Zurwelle, Fred S. Watts | 2007-09-11 |
| 7013571 | Laser level | Karim El-Katcha, Robert E. McCracken, Allen Brelsford, Donald W. Zurwelle, Fred S. Watts | 2006-03-21 |
| 6915583 | Laser level | Karim El-Katcha, Robert E. McCracken, Allen Brelsford, Donald W. Zurwelle, Fred S. Watts | 2005-07-12 |
| 6606798 | Laser level | Karim El-Katcha, Robert E. McCracken, Allen Brelsford, Donald W. Zurwelle, Fred S. Watts | 2003-08-19 |