Inventor
WATKINS DAVID ROBERT
GB12 patents
⚠️ This page may combine multiple inventors who share the name “WATKINS DAVID ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO RUBBER IND
10 patentsUSD434353SNov 28, 2000
Vehicle tire
SUMITOMO RUBBER IND60 citations95
US6200401B1Mar 13, 2001
Method of determining groove angle to give optimum tread wear
SUMITOMO RUBBER IND17 citations83
US6190478B1Feb 20, 2001
Method of manufacturing tire including grooves
SUMITOMO RUBBER IND6 citations73
US5829503ANov 3, 1998
Motorcycle tire
SUMITOMO RUBBER IND13 citations72
US6318429B1Nov 20, 2001
Tire with breaker ply extending between bead regions
SUMITOMO RUBBER IND6 citations71
US6125898AOct 3, 2000
Motor-cycle radial tire
SUMITOMO RUBBER IND5 citations62
US5746852AMay 5, 1998
Motorcycle radial tire with rubber member between carcass plies
SUMITOMO RUBBER IND2 citations61
US5651845AJul 29, 1997
Motorcycle radial tire with supplementary breaker fly
SUMITOMO RUBBER IND5 citations61
US6523588B1Feb 25, 2003
Tire having tread including orientation of grooves changing across entire tread width
SUMITOMO RUBBER IND0 citations52
US6821369B2Nov 23, 2004
Single-stage method of fabricating radial tire with breaker ply extending between bead regions
SUMITOMO RUBBER IND1 citations49