Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10285789 | Dental bleaching gels and methods for making and using them | Calvin D. Ostler | 2019-05-14 |
| 9839491 | Dental handpieces | Jack Nichols, Bruce Draper, Densen Cao | 2017-12-12 |
| D740117 | Packaging tray | Jack Nichols, Densen Cao, Steven D. Jensen | 2015-10-06 |
| 7530808 | Binary dental bleaching using switch-closable double barrel syringe | Densen Cao, Calvin D. Ostler | 2009-05-12 |