Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594993 | Hand-held builder's square and string line device incorporating a laser | ROBERT C TAGER, Roger D. Ludlow | 1997-01-21 |
| 5565846 | Reader system for waste bin pickup vehicles | Theodore D. Geiszler, Noel H. Eberhardt, Russel E. Walker | 1996-10-15 |