P

Inventor

DEMASTER ROBERT D

5 patents
⚠️ This page may combine multiple inventors who share the name “DEMASTER ROBERT D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MINNESOTA MINING & MFG

3 patents
US4061268ADec 6, 1977

Traction mat

MINNESOTA MINING & MFG44 citations90
US4035059AJul 12, 1977

Low-profile raised retroreflective pavement marker

MINNESOTA MINING & MFG39 citations90
US5841613ANov 24, 1998

Tape cassette for cleaning VCR heads and transport components

MINNESOTA MINING & MFG15 citations69

3M INNOVATIVE PROPERTIES CO

1 patent
US7026103B2Apr 11, 2006

Multicolor imaging using multiphoton photochemical processes

3M INNOVATIVE PROPERTIES CO49 citations92

3M INNOVATIVE PORPERTIES COMPA

1 patent
US6256166B1Jul 3, 2001

Tape cassette for cleaning VCR heads and transport components

3M INNOVATIVE PORPERTIES COMPA4 citations52