Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9877798 | Electric dental handpiece | Joseph A. Lieb, Arthur A. Knopp | 2018-01-30 |
| 5855931 | Vacuum forming apparatus | Joseph A. Lieb | 1999-01-05 |
| D385630 | Digital dental curing light | Joseph A. Lieb | 1997-10-28 |
| 4623795 | Irradiating device | Arthur A. Knopp, Albert D. Alderman, Jr. | 1986-11-18 |
| 4519779 | Orthodontal electrical device and method of employing same | — | 1985-05-28 |
| 4477252 | Fiber optic system for dental handpiece | Albert D. Alderman, Jr., James L. Alago | 1984-10-16 |
| 4318695 | Handpiece | Albert D. Alderman, Jr. | 1982-03-09 |
| 4313725 | Dental handpiece and collet wrench therefor | Albert D. Alderman, Jr., James L. Alago | 1982-02-02 |