Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595775 | Dental mirror | Kenneth Berk, Donald Berk | 2003-07-22 |
| 6474989 | Dental mirror and protective mask with integral removal tab | Kenneth Berk, Donald Berk | 2002-11-05 |
| 6159009 | Dental amalgam carrier with replaceable sleeves and cartridges | Kenneth Berk, Donald Berk, Russell D. Jenkins | 2000-12-12 |
| 6142777 | Disposable dental mirror | Paul E. Winston, Ronald B. Wasserman, Kenneth Berk, Donald Berk | 2000-11-07 |
| 5181755 | Small object handling device, assembly and method of manufacture | Lawrence J. Stanwich, Kenneth Berk, Donald Berk | 1993-01-26 |