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| 8308821 | Process for treating animal skins | Jun 04, 09 | Nov 13, 12 | AKZO NOBEL CHEMICALS INTERNATIONAL B.V., Gases Research Innovation and Technology S.L., GASES RESEARCH INNOVATION AND TECHNOLOGY S.L. (GRIT S.L.), |
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| 6482240 | Method of making a collagen membrane from porcine skin | Dec 07, 99 | Nov 19, 02 | ED. GEISTLICH SOEHNE AG FUER CHEMISCHE INDUSTRIE, ED. GEISTLICH SOHNE AG FUR CHEMISCHE INDUSTRIE BAHNHOFSTRASSE 40, |
| 5985167 | Wet treatment of leather hides | Jun 23, 95 | Nov 16, 99 | Hodgson Process Chemicals, Inc. |
| 5525120 | Degreasing process | Sep 12, 94 | Jun 11, 96 | HENKEL KGAA |
| 5512058 | Process for the treatment of skins, hides or shett materials containing collagen by a dense, pressurized fluid | Jun 02, 94 | Apr 30, 96 | COMMISSARIAT A L'ENERGIE ATOMIQUE, Centre Technique Cuir-Chaussure-Maroquinerie, |
| 5508195 | Method for liming hides and skins | Sep 26, 95 | Apr 16, 96 | ROHM GMBH |
| 5501709 | Economy and plumping chrome tanning | Aug 12, 93 | Mar 26, 96 | Hoechst Aktiengesellschaft |
| 5427594 | Process for pickling raw hides | Jan 22, 93 | Jun 27, 95 | CIBA SPECIALTY CHEMICALS CORPORATION |
| 5376142 | Method to treat animal skins prior to tanning | May 21, 93 | Dec 27, 94 | ALBRIGHT & WILSON UK LIMITED |
| 5360453 | Process for pickling and pretanning raw hides | Jan 22, 93 | Nov 01, 94 | CIBA SPECIALTY CHEMICALS CORPORATION |
| 5340365 | Process for producing chrome leather | Sep 09, 92 | Aug 23, 94 | Bayer Aktiengesellschaft |
| 5328677 | Recovery of sulfides from tannery waste liquor | Jun 17, 92 | Jul 12, 94 | PVL LIMITED PARTNERSHIP I ( PFISTER & VOGEL DIVISION) CONSISTING OF PVL INC., A WI CORP., AS GENERAL PARTNER AND LEATHER HOLDINGS INC., A WI CORP. CORPORATION, AS LIMITED PARTNER, PVL Limited Partnership I, |
| 5326377 | Method of treating hides | Apr 30, 92 | Jul 05, 94 | AGA AB |
| 4968621 | Method for the wet degreasing of hide and skin stock | Aug 07, 89 | Nov 06, 90 | ROHM GMBH |
| 4484924 | Process for producing unhaired, storable hides and skins | Jun 20, 83 | Nov 27, 84 | ROHM GMBH |