Inventor · Ontario, NY, US

Gary D. Friends

17Patents
14h-index
18Co-inventors
75Inventor score

Filing activity: Sep 13, 1979 → Jun 21, 2006

Most-cited inventions

PatentTitleAreaCited byStatus
US4327203A Polysiloxane with cycloalkyl modifier composition and biomedical devices Physics 187 Expired
US4355147A Polysiloxane with polycyclic modifier composition and biomedical devices Emerging Cross-Sectional Technologies 180 Expired
US4254248A Contact lens made from polymers of polysiloxane and polycyclic esters of acrylic acid or methacrylic acid Physics 176 Expired
US4341889A Polysiloxane composition and biomedical devices Chemistry; Metallurgy 171 Expired
US5352714A Wettable silicone hydrogel compositions and methods for their manufacture Chemistry; Metallurgy 148 Expired
US5006622A Polymer compositions for contact lenses Physics 130 Expired
US4810764A Polymeric materials with high oxygen permeability and low protein substantivity Physics 87 Expired
US5270418A Polymer compositions for contact lenses Physics 78 Expired
US4436887A N-Vinyl lactam based biomedical devices Physics 74 Expired
US5236969A Polymer compositions for contact lenses Physics 65 Expired
US4663409A Alpha, beta-unsaturated carbonyl modified amino acid monomer and polymers for biomedical uses Physics 51 Expired
US4652622A Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof Physics 34 Expired
US4495361A Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof Human Necessities 19 Expired
US7021761B2 Lens with colored portion and coated surface Physics 19 Expired
US4440919A Low N-vinyl lactam content based biomedical devices Chemistry; Metallurgy 9 Expired
US7147326B2 Lens with colored portion and coated surface Physics 4 Expired
US7745564B2 System for synthesis of device forming monomers Chemistry; Metallurgy 1 Active

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