C14C 3/26

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9970070 Chrome-free leather retanningOct 15, 14May 15, 18Rohm and Haas Company
9376729 Compositions comprising at least one compound containing a carbamoyl sulfonate group and use of the same as tanning agentsJul 28, 11Jun 28, 16LANXESS DEUTSCHLAND GMBH
8808398 Non metal tanningOct 25, 11Aug 19, 14STAHL INTERNATIONAL BV
8801804 Non-metal tanning processOct 05, 11Aug 12, 14STAHL INTERNATIONAL BV
8795389 Non metal tanningOct 05, 11Aug 05, 14STAHL INTERNATIONAL BV
8795390 Non metal tanningOct 25, 11Aug 05, 14STAHL INTERNATIONAL BV
8790415 Non metal tanningOct 05, 11Jul 29, 14STAHL INTERNATIONAL BV
8790416 Non-metal tanning processOct 05, 11Jul 29, 14STAHL INTERNATIONAL BV
8679195 Tanning process and tanning compositionMar 04, 10Mar 25, 14STAHL INTERNATIONAL BV
8679196 Non metal tanningOct 25, 11Mar 25, 14STAHL INTERNATIONAL BV