Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9877798 | Electric dental handpiece | Nathaniel H. Lieb, Arthur A. Knopp | 2018-01-30 |
| 5855931 | Vacuum forming apparatus | Nathaniel H. Lieb | 1999-01-05 |
| D385630 | Digital dental curing light | Nathaniel H. Lieb | 1997-10-28 |
| 5589958 | Kitchen ensemble having windows with controllable opacity | — | 1996-12-31 |