| Patents for C14C 1 - Treating skins or hides with chemicals, enzymes or micro-organisms prior to tanning (1,091) |
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| 04/03/2007 | US7198647 Comprises aqueous solution of trypsin, chymotrypsin, carboxypeptidase, alpha-amylase, glucosidase, and lipase |
| 03/22/2007 | US20070061979 Method and system for drying out the leather side of a pelt stretched out and fixed in this position on a pelt board |
| 03/14/2007 | CN1928124A Natural plant aroma woolfell and method of tanning the same |
| 03/14/2007 | CN1928123A Hair-protection and hair-removing composition of organosilicon and enzyme and method for hair-protection and hair-removing animal skin by the same |
| 03/14/2007 | CN1928122A Mat prepared from scalper skin and preparation process |
| 03/07/2007 | CN1303210C Detersile proteinase and its production process and usage and microbe producing the said proteinase |
| 03/06/2007 | US7186546 Process for the preparation of alkaline protease |
| 03/01/2007 | US20070044246 Leather garment |
| 02/28/2007 | CN1920058A Shaped tanning method of leather |
| 02/15/2007 | US20070037502 System for reducing microbial levels on the hide of an animal |
| 02/01/2007 | US20070022541 Method for producing leather |
| 01/24/2007 | CN1900321A Method for ash-free and no-sulfurizing alkaline liming treatment for making pigskin leather |
| 01/10/2007 | CN1891043A Combinations of active ingredients for protecting animal skins and leather |
| 12/21/2006 | WO2006135150A1 Leather made of tuna skins and the manufacturing method thereof |
| 12/20/2006 | CN1882706A Method for the extraction of keratin from dead animal skins |
| 12/20/2006 | CN1291041C Use of polyelectrolytes in the production of leather |
| 12/14/2006 | US20060277687 Reacting compounds such as 1, 3-butadiene with at least one peroxide to form bisepoxide in presence of manganese catalyst prepared by reacting manganese acetate with 1,4,7-trimethyl-1,4,7-triazacyclononane and a coligand; for use in producing erythro-dithiol compound |
| 12/13/2006 | CN1878877A A lime-sulphide free dehairing and fiber opening process |
| 11/21/2006 | CA2247611C Method and composition for hair removal |
| 11/14/2006 | US7134957 Method for reducing microbial levels on the hide of an animal |
| 11/09/2006 | WO2006089384A3 Product for pelt conditioning for tanning: process for pelt conditioning and following tanning |
| 11/09/2006 | US20060248654 Process for treating animal skins |
| 10/25/2006 | CN1852994A A process for leather making using saline water |
| 10/25/2006 | CN1852892A Method for the production of bisepoxides and dithiols |
| 10/25/2006 | CN1281766C Method for leather-making with Co2 supercritical fluid as medium |
| 10/12/2006 | US20060225223 Coloring method of natural leather and colored natural leather using the same |
| 10/10/2006 | US7118603 For leather; polymer containing aromatic sulfonate groups |
| 10/05/2006 | US20060218729 Method for making environment-friendly artificial leather from ultra micro fiber without solvent treatment |
| 10/03/2006 | US7115387 Process for the preparation of aldehyde from a proteinous source for industrial applications |
| 09/27/2006 | CN1836920A Sturgeon leather painting and making method therefor |
| 09/19/2006 | US7108724 Anti-pilling treating method for protein fiber material |
| 09/14/2006 | DE102005011494A1 Dyeing leather through its thickness, using a disperse dye, particularly combined with a mordant, then drying and heat treatment for fixing the dye |
| 08/31/2006 | WO2006089384A2 Product for pelt conditioning for tanning: process for pelt conditioning and following tanning |
| 08/30/2006 | EP1694873A2 Process for treating animal skins |
| 08/09/2006 | EP1687454A1 Method for the extraction of keratin from dead animal skins |
| 08/09/2006 | EP1687453A1 A lime-sulphide free dehairing and fibre opening process |
| 08/09/2006 | CN1814812A Animal skin processing method |
| 08/03/2006 | US20060172674 Method for reducing microbial levels on the hide of an animal |
| 07/13/2006 | WO2006072645A1 Improvements to patent of invention p200001758, method for the transformation of chrome-free tanning waste and products thus obtained |
| 07/13/2006 | US20060150342 Stuffing agent for leather based on mixtures of modified, native oils with alcoxylated alkanols, use thereof and method for treating leather |
| 07/06/2006 | US20060143833 Leather degreasing agent |
| 06/29/2006 | US20060137103 Process for the preparation of bio-tanning agent |
| 06/29/2006 | US20060137102 Bio-tanning process for leather making |
| 06/29/2006 | US20060137101 Process for making wet-pink leather |
| 06/22/2006 | US20060130241 Method for producing leather |
| 06/15/2006 | WO2005059184A3 Process for treating animal skins |
| 06/15/2006 | US20060123554 Method of graphically coloring leather |
| 06/08/2006 | WO2006060297A1 Method of protecting an animal skin product from metalloproteinase activity |
| 06/08/2006 | CA2589005A1 Method of protecting an animal skin product from metalloproteinase activity |
| 06/07/2006 | EP1663964A2 Method for the production of bisepoxides and dithiols |
| 05/18/2006 | US20060101583 Heating dihydrofuran or dihydropyran derivative in presence of polyglycerol, water, and acid catalysis; deesterification, deamidation; distillation, filtration; aldol condensation; preserving products, for example cosmetic products, and surfaces |
| 05/17/2006 | EP1656459A1 A process for leather making using saline water |
| 05/11/2006 | US20060096036 Method for hydrophobing leather and furskins |
| 04/25/2006 | US7033402 pretanning wet treatment; controlling pH, temperature |
| 04/05/2006 | EP0740705B1 Thermostable variants of neutral proteases of bacillus stearothermophilus |
| 04/04/2006 | US7022005 Method for reducing microbial levels on the hide of an animal |
| 03/16/2006 | US20060058206 Aqueous activated components conveyed in a non-aqueous carrier system |
| 03/16/2006 | US20060053564 Tanning agents and preservatives |
| 03/15/2006 | CN1245523C Method for preparing leather using protease and method for treating wastes dervied from leather processing using same |
| 03/09/2006 | WO2006024629A1 Process and compositions for wet degreasing of pelts, skins, hides, leather intermediate products and non-finished leather |
| 03/09/2006 | US20060051400 Steam stable enzyme compositions |
| 03/02/2006 | US20060042018 Leather treatment |
| 02/23/2006 | US20060037148 Method for removing horn substances from animal skin |
| 02/21/2006 | US7001435 Method for dying leather with propylene glycol monomethyl ether (PGME) systems comprising adding polyacrylate resin base, C3 and C4 alcohols, and n-butyl acetate and negating the need for teflon dispersions, dibutyl phthalate, and improve |
| 02/15/2006 | CN1735697A Method for degreasing animal skins at ultralow interfacial surface tension |
| 02/15/2006 | CN1242073C Auxiliary for loosening animal skins and denuding the hair |
| 02/09/2006 | US20060026999 Apparatus for feeding and discharging liquid contents in a fulling vat for the treatment of hides and skins |
| 02/08/2006 | CN1730669A Cleaning depilation method |
| 02/08/2006 | CN1730293A Artificial panda made of rex rabbit skin and making method thereof |
| 02/02/2006 | US20060021149 Process for making a leather article structure |
| 01/05/2006 | DE3922748B4 Enzymatisches Weichverfahren Enzymatic soaking method |
| 01/04/2006 | CN1715424A Environment friendly depilation composition and its depilation method in water bath |
| 12/14/2005 | CN1708590A A novel ecofriendly bio-process for leather processing |
| 12/07/2005 | CN1705756A Method for producing leather |
| 11/30/2005 | CN1701664A Combinations of active ingredients for protecting animal skins and leather. |
| 11/17/2005 | US20050251922 Method for shaping animal hide |
| 11/15/2005 | US6964745 Dehydrating with a crosslinked polyacrylamide or a copolymer of acrylamide, and acrylate or methacrylate; reduce saline pollution and salt use, preservation, prevent putrefaction by bacterial; producing leather |
| 11/09/2005 | CN1226422C Method for increasing efficiency of soaking process for raw hide or fur |
| 11/03/2005 | US20050244556 Electrolyzed water treatment for meat and hide |
| 10/25/2005 | US6957554 Dehairing and fiber opening process for complete elimination of lime and sodium sulfide |
| 10/20/2005 | US20050229326 Method for removing horn substance from skins, pelts or furs |
| 10/19/2005 | EP1585839A1 Method for degreasing animal skins at ultralow interfacial surface tension |
| 10/05/2005 | EP1412539B1 Leather degreasing agent |
| 10/05/2005 | CN1678759A Process for lime and sulfide free unhairing of skins or hides using animal and/or plant enzymes |
| 10/05/2005 | CN1676614A New-type adjuvant for leather production |
| 09/29/2005 | US20050210596 Producing semifinished materials having tensile strength, colorability and body; reusable waste |
| 09/28/2005 | CN1673394A Method for leather-making with Co2 supercritical fluid as medium |
| 09/07/2005 | CN1218051C Use of 2-mercapto-pyridine-N-oxide |
| 09/07/2005 | CN1217576C Combinations of active ingredients for protecting animal skins and leather |
| 08/24/2005 | EP1565584A1 An ecofriendly bio-process for leather processing |
| 08/24/2005 | EP1565194A1 Aqueous activated components conveyed in a non-aqueous carrier system |
| 08/10/2005 | CN1653195A Method for removing horn substance from skins, pelts, or furs |
| 07/27/2005 | EP1556523A2 Method for producing leather |
| 07/27/2005 | EP1556522A1 Method for removing horn substances from animal skin |
| 07/20/2005 | CN1643166A Use of polyelectrolytes in the production of leather |
| 06/30/2005 | WO2005059184A2 Process for treating animal skins |
| 06/30/2005 | CA2551029A1 Process for treating animal skins |
| 06/29/2005 | CN1208470C Processing method of making leather using frog skin |
| 06/23/2005 | WO2005033070A3 Method for the production of bisepoxides and dithiols |
| 06/23/2005 | US20050132499 Process for leather making using saline water |