Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7451632 | Gauge restraint load calibration system | Daniel P. Otto, Harold Thomas Ruggles | 2008-11-18 |
| 7337682 | Gauge restraint measuring system | Daniel P. Otto, Harold Thomas Ruggles | 2008-03-04 |
| 7311010 | Gauge restraint measurement system | Daniel P. Otto, Harold Thomas Ruggles | 2007-12-25 |
| 7270018 | Gauge restraint measuring system | Daniel P. Otto, Harold Thomas Ruggles | 2007-09-18 |
| 7007561 | Gauge restraint measurement system | Daniel P. Otto, Harold Thomas Ruggles | 2006-03-07 |
| 4860455 | Single hand operation can opener | — | 1989-08-29 |
| 4696213 | Tool fine adjustment mechanism | — | 1987-09-29 |