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Patent applications and USPTO patent grants for Piasek; Edmund J..The latest application filed is for "oil solution of aliphatic acid derivatives of high molecular weight mannich condensation product".
Patent | Date |
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Oil Solution Of Aliphatic Acid Derivatives Of High Molecular Weight Mannich Condensation Product Grant 3,803,039 - Piasek , et al. April 9, 1 | 1974-04-09 |
Preparation Of Oil-soluble Boron Derivatives Of An Alkylene Polyamine-urea Or Thiourea-succinic Anhydride Addition Product Grant 3,718,663 - Piasek , et al. February 27, 1 | 1973-02-27 |
Boron Derivatives Of High Molecular Weight Mannich Condensation Products Grant 3,697,574 - Piasek , et al. October 10, 1 | 1972-10-10 |
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