Dr. McFarland Granted Patent for Oral Hygeine DeviceOral hygiene device Patent No. D932023 Inventor(s): Colin G. Cameron (Haslet, TX), Sherri McFarland (Haslet, TX) Assignee(s): PhotoDynamic Inc. (Halifax, , CA) Law Firm: Riverside Law LLP (5 non-local offices) Application No., Date, Speed: 29706480 on 09/20/2019 (739 days app to issue) Abstract: No Abstract Patent Class: N/A