Inventor
HAENGGI ROBERT A
US6 patents
⚠️ This page may combine multiple inventors who share the name “HAENGGI ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
5 patentsUS5194113AMar 16, 1993
Process for making conformable thermoplastic marking sheet
MINNESOTA MINING & MFG133 citations97
US5124178AJun 23, 1992
Skid-resistant surface marking material
MINNESOTA MINING & MFG44 citations92
US5094902AMar 10, 1992
Skid-resistant surface marking material
MINNESOTA MINING & MFG48 citations92
US5053253AOct 1, 1991
Skid-resistant pavement markings
MINNESOTA MINING & MFG45 citations92
US4937127AJun 26, 1990
Skid-resistant pavement markings
MINNESOTA MINING & MFG48 citations92