Inventor

DUFF JR RONALD R

US3 patents

⚠️ This page may combine multiple inventors who share the name “DUFF JR RONALD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GILLETTE CANADA

2 patents

US6018840AFeb 1, 2000

Notched dental hygiene article

GILLETTE CANADA153 citations96

US6823554B1Nov 30, 2004

Oral devices

GILLETTE CANADA21 citations89

BRAUN PHILLIP M

1 patent

US8332982B2Dec 18, 2012

Vibrating toothbrush

BRAUN PHILLIP M47 citations89