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Patent applications and USPTO patent grants for Johnston; Christian W..The latest application filed is for "hydrophilic polyurethanes of improved strength".
Patent | Date |
---|---|
Hydrophilic polyurethanes of improved strength Grant 5,334,691 - Gould , et al. * August 2, 1 | 1994-08-02 |
Hydrophilic polyurethanes of improved strength Grant 5,120,816 - Gould , et al. June 9, 1 | 1992-06-09 |
Thermally reversible polyurethane hydrogels and cosmetic, biological and medical uses Grant 5,000,955 - Gould , et al. March 19, 1 | 1991-03-19 |
Polyurethane polyene compositions Grant 4,496,535 - Gould , et al. January 29, 1 | 1985-01-29 |
Polyurethane polyene compositions Grant 4,490,423 - Gould , et al. December 25, 1 | 1984-12-25 |
Polyurethane polyene compositions Grant 4,454,309 - Gould , et al. June 12, 1 | 1984-06-12 |
Polyurethane quaternary ammonium salts Grant 4,451,635 - Gould , et al. May 29, 1 | 1984-05-29 |
Polyurethane diacrylate compositions useful in forming canulae Grant 4,439,583 - Gould , et al. * March 27, 1 | 1984-03-27 |
Gas and ion permeable membranes formed of polyurethane diacrylate compositions Grant 4,439,584 - Gould , et al. * March 27, 1 | 1984-03-27 |
Polyurethane diacrylate compositions as carrier for pharmacological agents Grant 4,439,585 - Gould , et al. * March 27, 1 | 1984-03-27 |
Surgical implants formed of polyurethane diacrylate compositions Grant 4,424,305 - Gould , et al. January 3, 1 | 1984-01-03 |
Polyurethane diacrylate compositions useful for contact lenses and the like Grant 4,408,023 - Gould , et al. October 4, 1 | 1983-10-04 |
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