Inventor · disambiguated record
Dennis J. Chirhart
Also filed as: CHIRHART DENNIS J
4 granted patents·1 pending application·209 citations·filing 1987–2006
81Inventor score
Top patents by PatentIndex Score
5 records- 0194US4983436ARetroreflective sheeting with backing filmMINNESOTA MINING & MFG·Filed 1987·Granted Jan 8, 1991·116 cites·33 claims
- 0282US6325515B1Cube corner retroreflective article with enhanced pigmentation3M INNOVATIVE PROPERTIES CO·Filed 2000·Granted Dec 4, 2001·53 cites·35 claims
- 0366US7329447B2Retroreflective sheeting with controlled cap-Y3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Feb 12, 2008·12 cites·19 claims
- 0466US4919741AMethod for making embossed information plate having retroreflective sheeting on the surface thereofMINNESOTA MINING & MFG·Filed 1989·Granted Apr 24, 1990·28 cites·25 claims
- 0541US2007048501A1Formation of retroreflective sheeting with controlled cap-y3M INNOVATIVE PROPERTIES CO·Filed 2006·Application pending·0 cites
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