Inventor · Epagny, CH

Frédéric Gremaud

11Patents
3h-index
12Co-inventors
53Inventor score

Filing activity: Oct 29, 2002 → Mar 13, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
US8734679B2 Identification and authentication using liquid crystal material markings Chemistry; Metallurgy 40 Active
US7402614B2 Pigmented ink composition Chemistry; Metallurgy 7 Expired
US8864037B2 Multilayer flake with high level of coding Emerging Cross-Sectional Technologies 5 Active
US8740088B2 Identification and authentication using liquid crystal material markings Chemistry; Metallurgy 3 Active
US8734678B2 Identification and authentication using polymeric liquid crystal material markings Chemistry; Metallurgy 3 Active
US8426012B2 Chiral liquid crystal polymer marking Emerging Cross-Sectional Technologies 3 Active
US8426011B2 Marking based on chiral liquid crystal polymers Emerging Cross-Sectional Technologies 3 Active
US8426014B2 Modified marking based on chiral liquid crystal polymers Emerging Cross-Sectional Technologies 3 Active
US9200204B2 Identification and authentication using polymeric liquid crystal material markings Chemistry; Metallurgy 3 Active
US8426013B2 Marking based on modified chiral liquid crystal polymers Emerging Cross-Sectional Technologies 2 Active
US8821756B2 Substrate with a modified liquid crystal polymer marking Emerging Cross-Sectional Technologies 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.