Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6350200 | Safety tips for police batons | Paul D. Starrett | 2002-02-26 |
| 5395904 | Process for providing homogeneous copolymers of vinylpyrrolidone and vinyl acetate which form clear aqueous solutions having a high cloud point | Yuanzhen Zhong, Hemant Parikh | 1995-03-07 |
| 5326880 | Asymmetrical polypyrrolidonyl compounds having a wide liquid range | William L. Mandella, Paul D. Taylor | 1994-07-05 |
| 5319041 | Process for the preparation of vinylpyrrolidone/vinyl acetate copolymers | Yuanzhen Zhong, Hemant Parikh, Paul D. Taylor | 1994-06-07 |
| 5312619 | Aqueous stable complex of a strongly swellable, moderately crosslinked polyvinylpyrrolidone and hydrogen peroxide | Jenn S. Shih, John J. Merianos, Jui-Chang Chuang | 1994-05-17 |
| 5306795 | Polymerization of vinylpyrrolidone | Jenn S. Shih | 1994-04-26 |
| 5239053 | Purification of vinyl lactam polymers | Susan Y. Tseng, William L. Mandella, Robert B. Login, Paul D. Taylor | 1993-08-24 |
| 5219906 | Low boiling solubilizer for vinyl pyrrolidone/acrylic acid copolymers | Jenn S. Shih | 1993-06-15 |
| 5139770 | Cosmetic compositions containing strongly swellable, moderately crosslinked polyvinylpyrrolidone | Jenn S. Shih, Jui-Chang Chuang, Carmen D. Bires, Michael W. Helioff, Robert B. Login | 1992-08-18 |
| 5073614 | Strongly swellable, moderately crosslinked polyvinylpyrrolidone | Jenn S. Shih, Jui-Chang Chuang | 1991-12-17 |
| 5045617 | Zwitterion terpolymers of a vinyl lactam, an amino alkyl acrylamide or acrylate, and a polymerizable carboxylic acid | Jenn S. Shih | 1991-09-03 |
| 5015708 | Precipitation polymerization of terpolymers of a vinyl lactam, a polymerizable carboxylic acid and a hydrophobic monomer in an aliphatic hydrocarbon solvent | Jenn S. Shih, Robert B. Login | 1991-05-14 |
| 5011895 | Precipitation polymerization of copolymers of a vinyl lactam and a polymerizable carboxylic acid using sub-surface feeding | Jenn S. Shih, John Zamora, Minas Economidis | 1991-04-30 |
| 5006595 | Solubilization of complexes of water-insoluble organic compounds by aqueous solutions of polyvinylpyrrolidone | James R. Cho, Ian W. Cottrell | 1991-04-09 |
| 4985487 | Zwitterion polymers | Jenn S. Shih | 1991-01-15 |
| 4927667 | Aqueous process for preparing water-resistant coatings of hydrophobic copolymers made from hydrophilic monomers | Jenn S. Shih, Robert B. Login | 1990-05-22 |
| 4923694 | Hydrolysis resistant vinyl lactam amino acrylamide polymers | Jenn S. Shih | 1990-05-08 |
| 4920145 | Water-soluble complexes of water-insoluble pharmaceutical compounds and preparation thereof | James R. Cho, Ian W. Cottrell | 1990-04-24 |
| 4900775 | Solubilization of complexes of water-insoluble organic compounds by aqueous solutions of polyvinylpyrrolidone | James R. Cho, Ian W. Cottrell | 1990-02-13 |
| 4792400 | Insoluble vinyl lactam clarifiers | James A. Dougherty, Harold O. Locke, Fulvio J. Vara, Robert B. Login | 1988-12-20 |
| 4764588 | Insoluble vinyl lactam clarifiers | Ian W. Cottrell, John D. Pelesko | 1988-08-16 |