Sperl; George T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sperl; George T..The latest application filed is for "method for reducing the amount of and preventing the formation of hydrogen sulfide in an aqueous system".
- Sperl; George T. - Bartlesville OK
- Sperl; George T. - Gurnee IL
| Patent | Date |
|---|---|
| Method for reducing the amount of and preventing the formation of hydrogen sulfide in an aqueous system Grant 5,405,531 - Hitzman , et al. April 11, 1 | 1995-04-11 |
| Catalase-negative Pichia pastoris Grant 5,204,261 - Prevatt , et al. April 20, 1 | 1993-04-20 |
| Enhanced oil recovery using denitrifying microorganisms Grant 5,044,435 - Sperl , et al. September 3, 1 | 1991-09-03 |
| Transformation of yeasts of the genus pichia Grant 4,879,231 - Stroman , et al. * November 7, 1 | 1989-11-07 |
| Pichia pastoris argininosuccinate lyase gene and uses thereof Grant 4,818,700 - Cregg , et al. April 4, 1 | 1989-04-04 |
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