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Patent applications and USPTO patent grants for Butwell; Kenneth Francis.The latest application filed is for "process for separating polymeric contaminants from aqueous absorbent solutions used to treat organic gas-containing gas streams".
Patent | Date |
---|---|
Process for separating polymeric contaminants from aqueous absorbent solutions used to treat organic gas-containing gas streams Grant 4,113,837 - Kendall , et al. September 12, 1 | 1978-09-12 |
Process for acid gas removal Grant 4,093,701 - Butwell June 6, 1 | 1978-06-06 |
Process for acid gas removal Grant 4,079,117 - Butwell March 14, 1 | 1978-03-14 |
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