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Patent applications and USPTO patent grants for Valkama; Kari.The latest application filed is for "silver recovery by ion exchange".
Patent | Date |
---|---|
Silver recovery by ion exchange Grant 10,351,930 - Valkama , et al. July 16, 2 | 2019-07-16 |
Method for recovering metals Grant 10,174,400 - Kotiranta , et al. J | 2019-01-08 |
Method of preparing a gold-containing solution and process arrangement for recovering gold and silver Grant 10,060,007 - Miettinen , et al. August 28, 2 | 2018-08-28 |
Method of recovering copper and precious metals Grant 10,023,936 - Valkama , et al. July 17, 2 | 2018-07-17 |
Silver Recovery By Ion Exchange App 20170175224 - VALKAMA; Kari ;   et al. | 2017-06-22 |
Method For Recovering Metals App 20160115563 - KOTIRANTA; Tuukka ;   et al. | 2016-04-28 |
Method Of Recovering Copper And Precious Metals App 20160115568 - VALKAMA; Kari ;   et al. | 2016-04-28 |
Method Of Preparing A Gold-containing Solution And Process Arrangement For Recovering Gold And Silver App 20160068927 - MIETTINEN; Ville ;   et al. | 2016-03-10 |
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