Inventor

HARPER JAMES H C

US5 patents

⚠️ This page may combine multiple inventors who share the name “HARPER JAMES H C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MINNESOTA MINING & MFG

3 patents

US5077117ADec 31, 1991

3M INNOVATIVE PROPERTIES CO

1 patent

US5981033ANov 9, 1999

Pavement marking tape

3M INNOVATIVE PROPERTIES CO48 citations87

MINNEOTA MINING AND MANUFACTUR

1 patent

US5759928AJun 2, 1998

Retroreflective article with non-continuous top coat

MINNEOTA MINING AND MANUFACTUR33 citations87

HARPER JAMES H C

MINNESOTA MINING & MFG

Pavement marking material with rupturing top layer

Pavement marking material

Laser shield

3M INNOVATIVE PROPERTIES CO

Pavement marking tape

MINNEOTA MINING AND MANUFACTUR

Retroreflective article with non-continuous top coat