| Patents for C14C 1 - Treating skins or hides with chemicals, enzymes or micro-organisms prior to tanning (1,091) |
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| 09/25/2013 | CN103320550A Hair-saving and hair removing tanning method by adopting micro enzyme-alkaline process |
| 09/25/2013 | CN103320549A Silicate leather-making alkali expanding agent and preparation method thereof |
| 09/18/2013 | CN102344975B Clean tanning hair removal expansion method |
| 09/11/2013 | CN103290150A Production technology of cow rug |
| 09/11/2013 | CN103290149A Process for making goat upper leather |
| 09/11/2013 | CN103290148A Process for making goat denim line simulated upper leather |
| 09/04/2013 | CN103276120A Solid phase tanning method for nature hide powder |
| 09/04/2013 | CN103276117A Method for processing sheepskin into fur or leather in multiple steps by using biological enzyme |
| 08/28/2013 | CN103266188A Tanning paddle with heating device and used for fur softening section |
| 08/28/2013 | CN103266187A Shorn sheepskin tanning method |
| 08/28/2013 | CN103266186A Chrome-free tanning method for sheep shorn velvet |
| 08/28/2013 | CN102115797B Wood rotary drum structure |
| 08/21/2013 | CN102080134B Manufacturing process of semi-vegetable tanned wrinkled leather of cattlehide |
| 08/21/2013 | CN101993958B Method for recycling waste tanning liming liquid |
| 08/14/2013 | CN203128592U Pressure rotary drum applied to tanning process |
| 08/14/2013 | CN103243587A Technique for dyeing Tan sheep skin |
| 08/14/2013 | CN103243184A Method for degreasing hides of large marine mammals |
| 08/14/2013 | CN103243183A Process for quickly producing domestic goat skins |
| 08/14/2013 | CN103243182A Tanning method free of lime, sulfide, chloride ion and heavy metal chromium pollution |
| 08/08/2013 | US20130203329 System for Reducing Microbial Levels on the Hide of an Animal |
| 07/31/2013 | CN103225004A Xilu goat fur treatment process |
| 07/25/2013 | WO2013107233A1 Ammonium-free deliming agent and use thereof in leather deliming processes |
| 07/24/2013 | CN103215391A Non-chromium leather tanning method |
| 07/24/2013 | CN102517409B Leather retanning method |
| 07/24/2013 | CN102517407B Processing method of leather semi-finished product |
| 07/24/2013 | CN102304592B Production process of suede leather |
| 07/17/2013 | CN102051419B Dyeing and retanning tanning process |
| 07/10/2013 | CN103194548A Zirconium-aluminum-titanium tannage waterproof clothing leather and making method thereof |
| 06/26/2013 | EP2607499A2 Method for producing leather |
| 06/19/2013 | CN102517408B Sheepskin tanning process capable of replacing enzyme softening with excessive deliming |
| 06/19/2013 | CN102168153B Processing method of seawater-proof vamp leather |
| 06/12/2013 | EP2601316A1 Hide processing methods and compositions |
| 06/05/2013 | CN102399915B Environment-friendly raw skin preservative and preparation method thereof |
| 06/05/2013 | CN102303940B Method for treating sludge containing trivalent chromium |
| 05/29/2013 | CN101982547B Light-proof and sweat-proof leathers for steering wheels |
| 05/28/2013 | CA2661724C Use of 2-mercapto-pyridine n-oxide |
| 05/22/2013 | CN103114157A Processing method of furs of fur clothing |
| 05/21/2013 | US8444708 Epilatory compositions |
| 05/21/2013 | US8444707 Epilatory strip |
| 05/15/2013 | CN103103296A Method for improving tear strength of leather |
| 05/15/2013 | CN101643797B Novel auxiliary agent for blue leather wetting |
| 05/08/2013 | CN101760569B Leather making bio-pretreatment method |
| 05/08/2013 | CN101646761B An enzymatic treatment of skin and hide degreasing |
| 05/01/2013 | EP2585618A1 Enzyme dehairing of skins and hides |
| 05/01/2013 | CN103080340A Hide processing methods and compositions |
| 05/01/2013 | CN101353707B Improved method for solving all process defects before leather is pickled and use thereof |
| 04/25/2013 | US20130102058 Dehairing of Skins and Hides |
| 04/24/2013 | CN103069014A Enzyme dehairing of skins and hides |
| 04/24/2013 | CN103060490A Tanning method for tanning sheepskin clothing leather by hyperbranched polymer-aluminum salt tanning agent |
| 04/24/2013 | CN103060489A Sheep leather acid swelling treatment method |
| 04/24/2013 | CN103060488A Environment-friendly type crust leather production method |
| 04/24/2013 | CN103060487A Depilatory enzyme preparation for reducing leather damagepreparation |
| 04/24/2013 | CN103060486A Amylase and protease mixed depilation method in leather production |
| 04/24/2013 | CN103060485A Method for promoting protease depilation in leather production by using ultrasonic |
| 04/24/2013 | CN103060484A Salt-free tanning method |
| 04/24/2013 | CN103060483A Double waterproof chromium-free tanned sheep fur and its making method |
| 04/24/2013 | CN102392083B Method for manufacturing high temperature-resistant wool sheepskin for shoes and boots |
| 04/17/2013 | CN103045776A Method for producing fur clothes |
| 04/17/2013 | CN103045775A Manufacturing method of polyurethane imitated fluffy leather |
| 04/17/2013 | CN103045773A Environment-friendly surface active agent for tanning |
| 04/17/2013 | CN103045771A Preparation method of dual-purpose Spanish clothes wool leather free from dry cleaning |
| 04/17/2013 | CN103045769A Making method of goose down fur coat |
| 04/17/2013 | CN103045768A Making method of rex rabbit leather |
| 04/17/2013 | CN103045767A Method for producing mink skin |
| 04/17/2013 | CN101914637B Chrome-tanned, water-dyed and polished leather manufacturing method |
| 04/17/2013 | CN101768646B Method for preparing goose velour leather |
| 04/16/2013 | CA2740378C Methods of preserving hides |
| 04/10/2013 | CN202864950U Paddle-tumbler good for recycling fur-pickled wastewater |
| 04/10/2013 | CN101629218B Water-soluble self-emulsifying coupled modified silicone oil composite and application in pickling, tanning and dyeing of leather making |
| 04/03/2013 | CN101982548B Environment-purifying and pollution-preventing method and device for manufacturing fur coats from goose down fur |
| 03/27/2013 | CN102994657A Method for treating slunk |
| 03/27/2013 | CN102127604B Tannin-laponite chromium-free combined tanning method for manufacturing leather |
| 03/21/2013 | WO2013037872A1 Liquid active substance preparations for fungicidal protection from collagen-fibrous substrates |
| 03/20/2013 | EP2570502A1 Liquid preparations for fungicidal protection of substrates containing collagen fibres |
| 03/20/2013 | CN102978300A Method for tanning ecological automobile leather in unsalted no-pickling manner |
| 03/20/2013 | CN102978299A Manufacturing method of light, thin and soft high-strength goat gloving leather |
| 03/20/2013 | CN102978298A Totally enclosed less-chrome tanning circulation technique based on zirconium-aluminum-titanium cooperation tanning agent |
| 03/20/2013 | CN101323888B Method for making goose down fur |
| 03/06/2013 | CN102952907A Method for depilating animal skin |
| 03/05/2013 | US8388422 System for reducing microbial levels on the hide of an animal |
| 02/27/2013 | CN102943139A Aldehyde vegetable-chrome tanning combined production method for waxed soft leather |
| 02/27/2013 | CN102943137A Preparation method of crazing soft bag leather |
| 02/27/2013 | CN102943136A Method for preserving catamount furs |
| 02/13/2013 | CN102925597A Plant tanning method for tan sheep kivskin |
| 02/13/2013 | CN102925388A Alkaline proteinase high-producing strain and alkaline proteinase being produced from same |
| 02/13/2013 | CN102132704B Efficient sterilization crosslinking agent and method of for preparing hygienic sterilization product by using efficient sterilization crosslinking agent |
| 02/13/2013 | CN101445842B Manufacturing method of double-faced waterproofing pile-face dual-purpose leather of indumentum and leather boards |
| 02/05/2013 | CA2551029C Process for treating animal skins |
| 01/30/2013 | CN102899427A Leather soaking auxiliary agent |
| 01/16/2013 | CN102876819A Ammonia-free softening additive and application thereof in leather softening process |
| 01/16/2013 | CN102876818A Ammonia-free softened composite enzyme preparation and application thereof in leather softening technology |
| 01/09/2013 | CN102864660A Tanning and dyeing process for mink fur and leather |
| 01/09/2013 | CN102864248A Novel leather softener |
| 01/02/2013 | EP2539431A1 Enzymes from conidiobolus brefeldianus and process for preparation thereof |
| 01/02/2013 | CN102858967A A Novel Fungal Strain Beauveria Sp. MTCC 5184 And A Process For The Preparation Of Enzymes Therefrom |
| 01/02/2013 | CN102851409A Process for improving aging resistance of leather |
| 01/02/2013 | CN101812550B Environment-friendly leather making process for automotive seat cushion leather |
| 12/26/2012 | CN102839236A Dual-purpose modification process for native breed sheepskin leather |
| 12/26/2012 | CN102839235A Tanning processing technology for utilizing rana chensinensis skin |
| 12/19/2012 | CN102827965A Manufacture method of metal-aldehyde-free vegetable tanning oil wax bag leather |