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Patent applications and USPTO patent grants for Parikh; Hemant.The latest application filed is for "process for increasing the viscosity of aqueous solutions of homogeneous copolymers of vinyl pyrrolidone and n-3, 3-dimethylaminopropyl methacrylamide".
Patent | Date |
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Process for increasing the viscosity of aqueous solutions of homogeneous copolymers of vinyl pyrrolidone and n-3, 3-dimethylaminopropyl methacrylamide Grant 5,844,041 - Anderson , et al. December 1, 1 | 1998-12-01 |
Process for providing homogeneous copolymers of vinylpyrrolidone and vinyl acetate which form clear aqueous solutions having a high cloud point Grant 5,395,904 - Zhong , et al. March 7, 1 | 1995-03-07 |
Process for the preparation of vinylpyrrolidone/vinyl acetate copolymers Grant 5,319,041 - Zhong , et al. June 7, 1 | 1994-06-07 |
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