Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6932216 | Electric toothbrush | Lawrence A. Blaustein, John R. Nottingham, John W. Spirk, Douglas A. Gall | 2005-08-23 |
| 6836917 | Replaceable head electric toothbrush and connection structure therefor | Lawrence A. Blaustein, Douglas A. Gall, John Geoffrey Chan, K. Chan, Ping Wang | 2005-01-04 |