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Patent applications and USPTO patent grants for Heitfeld; Fred A..The latest application filed is for "proteolytic perhydrolysis system and method of use for bleaching".
Patent | Date |
---|---|
Proteolytic perhydrolysis system and method of use for bleaching Grant 5,364,554 - Stanislowski , et al. * November 15, 1 | 1994-11-15 |
Odor control animal litter containing sodium fluoride Grant 5,097,799 - Heitfeld , et al. March 24, 1 | 1992-03-24 |
Odor control animal litter Grant 4,957,063 - Heitfeld , et al. September 18, 1 | 1990-09-18 |
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