Inventor · Krefeld, DE

Friedrich-Karl Bruder

89Patents
8h-index
114Co-inventors
81Inventor score

Filing activity: Jun 28, 1995 → Feb 15, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8329773B2 Holographic media and photopolymers Physics 89 Active
US6492468B1 Vinylcyclohexane-based block copolymers Physics 18 Expired
US9146456B2 Photopolymer formulation for producing holographic media having highly crosslinked matrix polymers Physics 17 Active
US6577657B1 Plastic substrate for solid-state laser Electricity 13 Expired
US8361678B2 Special polyether-based polyurethane formulations for the production of holographic media Physics 11 Active
US8771903B2 Method for producing a holographic film Physics 9 Active
US9073296B2 Laminate structure comprising a protective layer and an exposed photopolymer layer Emerging Cross-Sectional Technologies 8 Active
US9804490B2 Holographic media with improved light sensitivity Physics 8 Active
US8889322B2 Photopolymer formulation having different writing comonomers Physics 8 Active
US10001703B2 Photopolymer formulation for production of holographic media comprising borates with low TG Physics 7 Active
US8889321B2 Method for producing a holographic film Physics 7 Active
US9057946B2 Difunctional (meth)acrylate writing monomers Physics 7 Active
US9098065B2 Photopolymer formulation for producing holographic media Physics 7 Active
US8222314B2 Phenyl isocyanate-based urethane acrylates, processes for producing and methods of using the same Chemistry; Metallurgy 7 Active
US9754084B2 Method for selecting photoinitiator systems Physics 6 Active
US8999608B2 Fluorourethane as an additive in a photopolymer formulation Physics 5 Active
US8921012B2 Photopolymer formulations having the adjustable mechanical modulus GUV Physics 4 Active
US9851489B2 Viewing angle switchable back light unit Physics 4 Active
US7879509B2 Radiation-crosslinking and thermally crosslinking PU systems based on isocyanate-reactive block copolymers Emerging Cross-Sectional Technologies 4 Active
US5545710A Use of special polycarbonates for the production of optical articles Physics 4 Expired
US9057950B2 Photopolymer formulation having ester-based writing monomers Physics 4 Active
US7981987B2 Aromatic urethane acrylates having a high refractive index Physics 4 Active
US6498217B1 Branching of polyamides with esters of carbonic acid Chemistry; Metallurgy 4 Expired
US9195215B2 Holographic medium having a protective layer Physics 3 Active
US8771904B2 Method for producing holographic media Physics 3 Active

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