1
William J Gahara, Thomas R Johnson, Tilak M Shah: Angioplasty balloons and balloon catheters. Worldwide Medical Plastics, St Onge Steward Johnston & Reens, August 21, 1990: US04950239 (137 worldwide citation)

Angioplasty and related medical dilatation balloons are molded from a polyurethane in which the "soft" segment is a minor segment by weight and the "hard" segment is the major segment by weight and which polyurethane has a hardness of at least 75D and a glass transition temperature of more than abou ...


2
Tilak M Shah: Polyurethane glove of welded polyurethane film. Polygenex International, Waldron & Associates, July 8, 1997: US05644798 (81 worldwide citation)

A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A, B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48A, B), ostomy pouches (50), organ bags (60), ...


3
Tilak M Shah: Gastro-occlusive device. Steven J Hultquist, Intellectual Property Technology Law, September 26, 2006: US07112186 (70 worldwide citation)

A gastro-occlusive device, comprising a balloon disposable in a stomach cavity of a patient, and inflatable therein to occlude a portion of the volume of the stomach cavity, a gas flow tube coupled at a distal end thereof with the balloon and extending outwardly through a stomach wall for coupling w ...


4
Tilak M Shah: Isotropically expansible balloon articles useful in in vivo lumenal procedures, and method of making such balloon articles. Steven J Hultquist, Mimi Yang, Marianne Fuierer, December 16, 2003: US06663646 (66 worldwide citation)

A balloon article, e.g., for an in vivo lumenal procedure, formed of a UV cross-linkable polyurethane material that is partially cross-linked to an extent providing a desired expansibility and/or compliant character to the balloon. The degree of cross-linking is selectively modified by the degree of ...


5
Tilak M Shah: Gastro-occlusive device. Vincent K Gustafson, Intellectual Property Technology Law, December 30, 2008: US07470251 (52 worldwide citation)

A gastro-occlusive device, comprising a balloon disposable in a stomach cavity of a patient, and inflatable therein to occlude a portion of the volume of the stomach cavity, a gas flow tube coupled at a distal end thereof with the balloon and extending outwardly through a stomach wall for coupling w ...


6
Tilak M Shah: Polyurethane elastomer organ bag of welded polyurethane film. Polygenex International, Waldron & Associates, October 21, 1997: US05679423 (50 worldwide citation)

A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A, B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48A, B), ostomy pouches (50), organ bags (60), ...


7
Tilak M Shah: Inflatable dual balloon catheter. Polyzen, Vincent K Gustafson, Steven J Hultquist, Intellectual Property Technology Law, May 22, 2007: US07220252 (45 worldwide citation)

A dual balloon catheter apparatus for controlling postpartum hemorrhage in uterine or vaginal cavities or hemorrhage in other body cavities, comprising: (1) a catheter having an inflation lumen and a deflation lumen; (2) a first inflatable balloon in fluid communication with the inflation lumen; and ...


8
Tilak M Shah: Dip molded polyurethane film methods. Polygenex International, Waldron & Associates, November 5, 1996: US05571567 (42 worldwide citation)

Dip molding of thermoplastic polyurethane elastomers to form medical and surgical gloves, condoms, instrument and appliance covers, and other rubber goods is improved by a controlled viscosity, controlled rate of evaporation solvent system, including a strong polar solvent, a weak solvent or non-sol ...


9
Henry W Bonk, Tilak M Shah: Thermoplastic polyurethane elastomers from polyoxypropylene polyoxyethylene block copolymers. The Upjohn Company, Denis A Firth, John Kekich, May 13, 1980: US04202957 (34 worldwide citation)

Polyurethane polyether-based elastomers are described which are thermoplastic, recyclable and have increased high temperature resistance which permits fabrication by injection molding. The elastomers are the product of reaction of 4,4'-methylenebis(phenyl isocyanate), a particular group of polypropy ...


10
Joseph D McGarry, Tilak M Shah: Glove liner having an ambidextreous and universal size. Polygenex International, Waldron & Associates, September 1, 1998: US05799333 (33 worldwide citation)

A seamless knitted glove with a cuff having an ambidextrous and universal size made from crimped and textured stretchable continuous filament nylon yarn of four ply of about 70 deniers or less. Also, a method of making a seamless knitted glove with a cuff having an ambidextrous and universal size co ...