| Patents for C14C 1 - Treating skins or hides with chemicals, enzymes or micro-organisms prior to tanning (1,091) |
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| 06/09/2005 | DE10353746A1 Verfahren zum Entfernen von Hornsubstanzen aus Häuten toter Tiere A process for removing horny substances from hides of dead animals |
| 06/02/2005 | WO2005049871A1 A lime-sulphide free dehairing and fibre opening process |
| 06/02/2005 | WO2005049870A1 Method for the extraction of keratin from dead animal skins |
| 05/24/2005 | US6896607 Method and system for processing waste streams derived from the dehairing of animals |
| 05/19/2005 | US20050102761 Novel dehairing and fibre opening process for complete elimination of lime and sodium sulfide |
| 05/12/2005 | DE10106541B4 Enzympräparat und dessen Verwendung in der Gerberei Enzyme preparation and its use in tanning |
| 04/26/2005 | CA2269066C Method for preserving animal hides |
| 04/19/2005 | US6881435 The use of certain siloxane and silane materials for the conservation of organic and inorganic materials. More specifically, this invention deals with a method of impregnating organic and inorganic materials with siloxanes |
| 04/14/2005 | WO2005033070A2 Method for the production of bisepoxides and dithiols |
| 04/13/2005 | EP1521850A1 Total lime and sulfide free unhairing process using animal and/or plant enzymes |
| 03/15/2005 | US6867032 Enzymatic unhairing agent for use in tanning for producing leather and method for enzymatic unhairing treatment |
| 03/09/2005 | EP1511865A1 Method for removing horn substance from skins, pelts, or furs |
| 03/03/2005 | US20050048887 Method and system for processing waste streams derived from the dehairing of animals |
| 02/24/2005 | WO2005017209A1 A process for leather making using saline water |
| 02/23/2005 | CN1584057A Preparing method for leather softener |
| 01/27/2005 | WO2005007897A1 Enzymatic treatment of hides and leather |
| 01/26/2005 | CN1570151A Method for manufacturing leather from rawhide or epidermis |
| 01/19/2005 | CN1566338A Unhairing protease and polynucleotide encoding same |
| 01/06/2005 | US20050003096 Conservation of organic and inorganic materials |
| 12/30/2004 | US20040261189 Subjecting protein fiber to intermolecular cross-linking reaction under weak alkaline conditions in a treating bath comprising a cross-linking agent containing 1 wt % or over of a pyrimidine compound which is dichloropyrimidine or trichloropyrimidine |
| 12/28/2004 | US6835411 Conservation of organic and inorganic materials |
| 12/22/2004 | EP1488013A1 Use of polyelectrolytes in the production of leather |
| 12/22/2004 | EP1488012A1 Cleaning animal skins |
| 11/18/2004 | DE10319240A1 Removal of keratin, i.e. callous, feather, nail, claw and hair or residual hair, from animal skin for leather manufacture, uses di- and poly-mercapto-alkane compound and peptide bond hydrolysis catalyst, e.g. enzyme |
| 11/17/2004 | EP1476583A1 Calcification-resistant fixation |
| 11/04/2004 | US20040219652 Enzyme mixture comprising cellulase, xylanase and laccase for degrading waste deposit from animal skins and cleaning farm buildings; leather working |
| 10/28/2004 | US20040214309 via soaking, liming, deliming, and/or bating with protease derived from Aranicola proteolyticus HY-3 strains; isotactic pressure sintering through die plate while preventing formation of fluid in powder; bioremediation; proteolysis; waste treatment |
| 10/13/2004 | CN1170946C Sheep skin oil-tanning and scrubbing leather and its making method |
| 09/22/2004 | EP0970225B1 Improved metallo-endopeptidases |
| 09/15/2004 | CN1529761A Method for preparing leather using protease and method for treating wastes dervied from leather processing using same |
| 08/03/2004 | US6770112 Mixture of off-cuts, e.g., skin hair trimming, collagen, suede etc., homogenized, a ph modifier, a catalyst, phenol or a phenolate; heating, pressurization; hydrolysis; manure and liquid fertiliser; soapy manure or converted into peat |
| 07/29/2004 | WO2004063396A1 Method for degreasing animal skins at ultralow interfacial surface tension |
| 07/22/2004 | DE10300479A1 Verfahren zum Entfetten von tierischen Häuten mittels ultraniedriger Grenzflächenspannung Method for degreasing animal hides using ultra-low interfacial tension |
| 07/21/2004 | CN1158393C Method for processing of hides or skins into leather, comprising enzymatic treatment of the hide or skin with a trypsin acting microbial protease |
| 06/24/2004 | WO2004037589A3 Method for producing leather |
| 06/09/2004 | CN1152966C Composition for preserving animal hides and method |
| 05/26/2004 | CN1151273C Anticorrosive, antiseptic, mildewproof, salt spot preventing and mothproof fresh hide-treating agent |
| 05/21/2004 | WO2004041293A1 Aqueous activated components conveyed in a non-aqueous carrier system |
| 05/21/2004 | CA2543388A1 Aqueous activated components conveyed in a non-aqueous carrier system |
| 05/19/2004 | CN1150337C Process for processing fur and tanning |
| 05/13/2004 | WO2004040021A1 A novel ecofriendly bio-process for leather processing |
| 05/06/2004 | WO2004038046A1 Method for removing horn substances from animal skin |
| 05/06/2004 | WO2004037589A2 Method for producing leather |
| 04/29/2004 | DE10249077A1 Verfahren zur Herstellung von Leder A process for the production of leather |
| 04/28/2004 | EP1412539A1 Leather degreasing agent |
| 04/14/2004 | CN1488767A Method for increasing efficiency of soaking process for raw hide or fur |
| 04/01/2004 | US20040063392 Method and system for processing waste streams derived from the dehairing of animals |
| 03/30/2004 | US6712685 Method and system for processing waste products generated in an animal dehairing operation |
| 03/23/2004 | US6708531 Ecofriendly bio-process for leather processing |
| 03/17/2004 | EP1124994B1 Auxiliary for liming and loosening hairs of animal skins |
| 02/10/2004 | US6689172 Auxiliary for liming and loosening hairs of animal skins |
| 01/22/2004 | WO2004007774A1 Total lime and sulfide free unhairing process using animal and/or plant enzymes |
| 01/15/2004 | US20040006825 Comprises aqueous solution of trypsin, chymotrypsin, carboxypeptidase, alpha-amylase, glucosidase, and lipase |
| 12/24/2003 | CN1462810A Treatment agent of compound enzyme skin sollagen |
| 12/03/2003 | CN1460001A Combinations of a ctive ingredients for protecting animal skins and leather |
| 11/27/2003 | WO2003097880A1 Method for removing horn substance from skins, pelts, or furs |
| 11/26/2003 | EP1109939B1 Depilatory paint thickener |
| 11/25/2003 | US6652597 By free-radically initiated polymerization of an N-vinylamide or N-vinylamine, and possible acrylic acid or ester comonomers |
| 10/02/2003 | WO2003080873A1 Cleaning animal skins |
| 09/25/2003 | WO2003078664A1 Use of polyelectrolytes in the production of leather |
| 09/17/2003 | EP1084279B1 Polymer tanning agents containing n-vinyl units |
| 08/13/2003 | CN2565841Y Driving device of double-knife extrusion horizontal leveling machine |
| 07/23/2003 | EP1328155A2 Combinations of active ingredients for protecting animal skins and leather |
| 07/15/2003 | US6592444 Method and system for processing waste products generated in an animal dehairing operation |
| 07/08/2003 | US6589293 Depilatory paint thickener comprising an anylopectin starch |
| 07/02/2003 | CN1427084A Processing method of making leather using frog skin |
| 04/30/2003 | CN1414114A Sheep skin oil tanning and scrubbing leather and its making method |
| 04/23/2003 | EP1304389A1 Enzymatic unhairing agent for use in tanning for producing leather and method for enzymatic unhairing treatment |
| 04/17/2003 | US20030073399 Method and system for processing waste products generated in an animal dehairing operation |
| 04/16/2003 | CN1105783C Technique and equipment for processing hides |
| 02/20/2003 | WO2003014241A1 Stabilisation and storage of connective tissue and skin of marine animals for the production of collagen and/or gelatin |
| 02/11/2003 | US6518054 Genes encoding variants of metallo-endopeptidases that have been engineered to be resistant to prolonged boiling while having maintained their enzymatic performance at much lower temperatures. thermal stability of the metallo-endopeptidases |
| 02/06/2003 | WO2003010340A1 Leather degreasing agent |
| 01/30/2003 | WO2003008650A1 Method for preparing leather using protease and method for treating wastes derived from leather processing using the same |
| 01/09/2003 | US20030005733 Process for transforming the residues left after tanning without chroming and the products thereby obtained |
| 12/05/2002 | US20020182711 Enzymatic unhairing agent for use in tanning for producing leather and method for enzymatic unhairing treatment |
| 11/21/2002 | US20020173260 Method and system for processing waste products generated in an animal dehairing operation |
| 11/20/2002 | EP1021567A4 Improved treatment of hides |
| 11/12/2002 | US6479521 Preservation of skins, hides |
| 10/24/2002 | WO2002023985A3 Combinations of active ingredients for protecting animal skins and leather |
| 10/10/2002 | US20020147227 Use of 2-mercapto-pyridine-n-oxide |
| 10/01/2002 | US6458024 Method and system for processing waste products generated in an animal dehairing operation |
| 09/18/2002 | EP0648263B1 Lipases from hyphozyma |
| 09/17/2002 | US6451586 Enzyme preparation containing protease |
| 09/17/2002 | US6451062 Comprising an effective biocidal amount of an essential oil and a non-ionic surfactant |
| 08/22/2002 | DE10106541A1 Enzympräparat und dessen Verwendung in der Gerberei Enzyme preparation and its use in tanning |
| 07/31/2002 | CN1361278A Detersile proteinase and its production process and usage and microbe producing the said proteinase |
| 07/24/2002 | EP0728219B1 Wet treatment of leather hides |
| 06/06/2002 | US20020066879 Active compound combinations for protecting animal hides and leather |
| 05/14/2002 | US6387135 Treatment of hides |
| 04/30/2002 | CA2094937C Method for de-hairing animals |
| 04/04/2002 | US20020038478 Pretanning using zeolite, then aldehyde |
| 04/03/2002 | EP0932704B1 Method for preserving animal hides |
| 04/02/2002 | US6365145 Using liposome; applying light |
| 03/28/2002 | WO2002023985A2 Combinations of active ingredients for protecting animal skins and leather |
| 03/28/2002 | DE10046265A1 Synergistic mixtures protecting animal hides or leather against microbial attack comprise phenols and fungicides such as mercaptobenzothiazole or chlorthalonil |
| 03/14/2002 | US20020031994 Method and system for processing waste products generated an animal dehairing operation |
| 03/13/2002 | EP1186674A2 Process for transforming the residues left after treatment without chroming and the products thereby obtained |
| 02/20/2002 | EP1056346A4 Method and system for dehairing animals |
| 01/23/2002 | CN1332253A :Anticorrosive, antiseptic, mildewproof, salt spot preventing and mothproof fresh hide-treating agent |