Inventor · Whitehall, PA, US

Fritz Hostettler

24Patents
16h-index
8Co-inventors
74Inventor score

Filing activity: Apr 17, 1973 → Mar 21, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US6120904A Medical device coated with interpenetrating network of hydrogel polymers Emerging Cross-Sectional Technologies 531 Expired
US6080488A Process for preparation of slippery, tenaciously adhering, hydrophilic polyurethane hydrogel coating, coated polymer and metal substrate materials, and coated medical devices Emerging Cross-Sectional Technologies 407 Expired
US5576072A Process for producing slippery, tenaciously adhering hydrogel coatings containing a polyurethane-urea polymer hydrogel commingled with at least one other, dissimilar polymer hydrogel Emerging Cross-Sectional Technologies 164 Expired
US6017577A Slippery, tenaciously adhering hydrophilic polyurethane hydrogel coatings, coated polymer substrate materials, and coated medical devices Emerging Cross-Sectional Technologies 133 Expired
US5919570A Slippery, tenaciously adhering hydrogel coatings containing a polyurethane-urea polymer hydrogel commingled with a poly(N-vinylpyrrolidone) polymer hydrogel, coated polymer and metal substrate materials, and coated medical devices Emerging Cross-Sectional Technologies 115 Expired
US5849368A Process for hydrophilicization of hydrophobic polymers Chemistry; Metallurgy 105 Expired
US6265016A Process for the preparation of slippery, tenaciously adhering, hydrophilic polyurethane hydrogel coatings, coated polymer and metal substrate materials, and coated medical devices Emerging Cross-Sectional Technologies 100 Expired
US5662960A Process for producing slippery, tenaciously adhering hydrogel coatings containing a polyurethane-urea polymer hydrogel commingled with a poly (n-vinylpyrrolidone) polymer hydrogel Chemistry; Metallurgy 98 Expired
US4722946A Energy-attenuating polyurethanes Chemistry; Metallurgy 82 Expired
US4559366A Preparation of microcellular polyurethane elastomers Emerging Cross-Sectional Technologies 62 Expired
US4287307A Integral skin microcellular polyester base polyurethane elastomers Chemistry; Metallurgy 29 Expired
US6030656A Process for the preparation of slippery, tenaciously adhering, hydrophilic polyurethane hydrogel coatings, coated metal substrate materials, and coated medical devices Emerging Cross-Sectional Technologies 27 Expired
US6359100B1 Methods of preparing polyurethane adhesives, adhesives produced thereby and medical devices employing the same Emerging Cross-Sectional Technologies 24 Expired
US6040058A Slippery, tenaciously adhering hydrophilic polyurethane hydrogel coatings, coated metal substrate materials, and coated medical devices Emerging Cross-Sectional Technologies 17 Expired
US4791156A Dental prosthetic from hard, rigid, non-hydrophilic polyurethane elastomer Chemistry; Metallurgy 16 Expired
US4577647A Hair curler device Human Necessities 16 Expired
US4156759A Polyurethane foams containing stabilized amylaceous materials Chemistry; Metallurgy 15 Expired
US4524102A Microcellular polyurethane foams having integral skin Emerging Cross-Sectional Technologies 15 Expired
US4197372A Semi-flexible polyurethane foams containing amylaceous material and process for preparing same Chemistry; Metallurgy 14 Expired
US3957753A Liquid hydroxy-terminated polyesters Chemistry; Metallurgy 13 Expired
US4469616A Low temperature, storage stable mixtures of polyester prepolymers and flow modifiers Chemistry; Metallurgy 7 Expired
US3931387A Catalyst system for injection molding polyurethanes Chemistry; Metallurgy 5 Expired
US4797226A Low temperature, compatible mixtures of polyether prepolymers and flow modifiers Chemistry; Metallurgy 2 Expired
US4800040A Low temperature, storage stable mixtures of prepolymers and flow modifiers Chemistry; Metallurgy 1 Expired

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