Inventor

HEININGER JAMES D

US4 patents

Patents

4 patents

US7168815B2Jan 30, 2007

Retroreflective elements and articles

3M INNOVATIVE PROPERTIES CO26 citations91

US7156528B2Jan 2, 2007

Retroreflective elements and articles

3M INNOVATIVE PROPERTIES CO27 citations91

US7458693B2Dec 2, 2008

Retroreflective elements and articles

3M INNOVATIVE PROPERTIES CO3 citations61

US7413316B2Aug 19, 2008

Retroreflective elements and articles

3M INNOVATIVE PROPERTIES CO1 citations61