Wiersema; Richard J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wiersema; Richard J..The latest application filed is for "immobilization of pseudomonas lipase on surfaces for oil removal".
- Wiersema; Richard J. - Tracy CA
- Wiersema; Richard J. - Pleasanton CA
- Wiersema; Richard J. - San Ramon CA
- Wiersema; Richard J. - North Wales PA
| Patent | Date |
|---|---|
| Immobilization of pseudomonas lipase on surfaces for oil removal Grant 6,265,191 - Mizusawa , et al. July 24, 2 | 2001-07-24 |
| Polyglycolate peracid precursors Grant 5,391,812 - Rowland , et al. February 21, 1 | 1995-02-21 |
| Proteolytic perhydrolysis system and method of use for bleaching Grant 5,364,554 - Stanislowski , et al. * November 15, 1 | 1994-11-15 |
| Enzymatic perhydrolysis system and method of use for bleaching Grant 5,296,161 - Wiersema , et al. * March 22, 1 | 1994-03-22 |
| Hydrolase surfactant systems and their use in laundering Grant 5,223,169 - El-Sayed , et al. June 29, 1 | 1993-06-29 |
| Enzymatic peracid bleaching system Grant 5,030,240 - Wiersema , et al. July 9, 1 | 1991-07-09 |
| Glycolate ester peracid precursors Grant 4,959,187 - Fong , et al. September 25, 1 | 1990-09-25 |
| Glycolate ester peracid precursors Grant 4,778,618 - Fong , et al. October 18, 1 | 1988-10-18 |
| Bleach composition containing controlled density capsules Grant 4,708,816 - Chang , et al. November 24, 1 | 1987-11-24 |
| Dispersing paint pigments Grant RE31,936 - Sperry , et al. July 2, 1 | 1985-07-02 |
| Cooperative enzymes comprising alkaline or mixtures of alkaline and neutral proteases without stabilizers Grant 4,511,490 - Stanislowski , et al. April 16, 1 | 1985-04-16 |
| Pigment dispersant for aqueous paints Grant 4,243,430 - Sperry , et al. January 6, 1 | 1981-01-06 |
| Dispersing paint pigments Grant 4,102,843 - Sperry , et al. July 25, 1 | 1978-07-25 |
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