Inventor
O'CALLAGHAN DAVID JOHN
GB4 patents
⚠️ This page may combine multiple inventors who share the name “O'CALLAGHAN DAVID JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOWELL DAREN MARK
3 patentsUS8769825B2Jul 8, 2014
Shaving razor including a biasing member producing a progressively increasing cartridge return torque and handle geometry enhancing control during shaving
HOWELL DAREN MARK66 citations94
US8732955B2May 27, 2014
Shaving razor including a biasing member producing a progressively increasing cartridge return torque
HOWELL DAREN MARK75 citations94
US8650763B2Feb 18, 2014
Shaving razor providing enhanced control during shaving
HOWELL DAREN MARK44 citations90