Inventor
DUFF JR RONALD RICHARD
US9 patents
⚠️ This page may combine multiple inventors who share the name “DUFF JR RONALD RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GILLETTE CO LLC
6 patentsUS11654588B2May 23, 2023
Razor blades
GILLETTE CO LLC8 citations82
US11794366B2Oct 24, 2023
Coatings for a razor blade
GILLETTE CO LLC2 citations68
US11872713B2Jan 16, 2024
Razors and razor cartridges with colored blades
GILLETTE CO LLC1 citations59
US11691308B2Jul 4, 2023
Razor blades with aluminum magnesium boride (AlMgB14)-based coatings
GILLETTE CO LLC1 citations57
US12544946B2Feb 10, 2026
Method of treating razor blade cutting edges
GILLETTE CO LLC0 citations48
US11759965B2Sep 19, 2023
Multi-layer coatings for a razor blade
GILLETTE CO LLC0 citations47