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apparatus therefor (33522) 33522
chemical treatment of hides, skins or leather, e.g. tanning,impregnating, finishing (33522) 33522
chemistry (33522) 33522
compositions for tanning (33522) 33522
hides (33522) 33522
leather (33522) 33522
metallurgy (33522) 33522
pelts (33522) 33522
skins (33522) 33522
compositions based thereon (6740) 6740
organic macromolecular compounds (6740) 6740
their preparation or chemical working-up (6740) 6740
paper (5917) 5917
textiles (5917) 5917
flexible materials not otherwise provided for (5503) 5503
laundering (5503) 5503
treatment of textiles or the like (5503) 5503
adhesives (4716) 4716
dyes (4716) 4716
miscellaneous applications of materials (4716) 4716
miscellaneous compositions (4716) 4716
natural resins (4716) 4716
paints (4716) 4716
polishes (4716) 4716
performing operations (3697) 3697
transporting (3697) 3697
treatment, not provided for elsewhere in class d06, of fibres, threads, yarns,fabrics, feathers, or fibrous goods made from such materials (3393) 3393
chemical paint or ink removers (3328) 3328
coating compositions, e.g. paints, varnishes orlacquers (3328) 3328
correcting fluids (3328) 3328
filling pastes (3328) 3328
inks (3328) 3328
pastes or solids for colouring or printing (3328) 3328
use of materials therefor (3328) 3328
woodstains (3328) 3328
macromolecular compounds obtained otherwise than by reactionsonly involving unsaturated carbon-to-carbon bonds (3280) 3280
general tagging of cross-sectional technologies spanning over several sections of the ipc (2839) 2839
general tagging of new technological developments (2839) 2839
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (2839) 2839
technical subjects covered by former uspc (2443) 2443
organic chemistry (2385) 2385
human necessities (2314) 2314
compositions of macromolecular compounds (2236) 2236
macromolecular compounds obtained by reactions only involvingcarbon-to-carbon unsaturated bonds (2158) 2158
intestine-splitting machines (1926) 1926
mechanical treatment or processing of skins, hides or leatherin general (1926) 1926
pelt-shearing machines (1926) 1926
technical subjects covered by former us classification (1901) 1901
dyeing leather, furs, or solid macromolecular substances inany form (1476) 1476
dyeing or printing textiles (1476) 1476
acyclic or carbocyclic compounds (1401) 1401
paper-making (1397) 1397
production of cellulose (1397) 1397
impregnating or coating of paper (1363) 1363
paper not otherwise provided for (1363) 1363
preparation thereof not covered by subclasses d21c or d21d (1363) 1363
pulp compositions (1363) 1363
treatment of finished paper not covered by class b31 or subclass d21g (1363) 1363
flexible sheet material not otherwise provided for (1312) 1312
wall, floor or like covering materials, e.g. linoleum,oilcloth, artificial leather, roofing felt, consisting of afibrous web coated with a layer of macromolecularmaterial (1312) 1312
physical or chemical processes or apparatus in general (1175) 1175
animal and vegetable oils, fats, fatty substances and waxes (1116) 1116
candles (1116) 1116
detergents (1116) 1116
fatty acids therefrom (1116) 1116
applying liquids or other fluent materials to surfaces, in general (1077) 1077
spraying or atomising in general (1077) 1077
materials for miscellaneous applications, not provided forelsewhere (1017) 1017
hygiene (992) 992
medical or veterinary science (992) 992
detergent compositions (962) 962
recovery of glycerol (962) 962
resin soaps (962) 962
soap or soap-making (962) 962
use of single substances as detergents (962) 962
use of inorganic or non-macromolecular organic substances ascompounding ingredients (858) 858
mixing, e.g. dissolving, emulsifying, dispersing (836) 836
after-treatment not covered by subclasses c08b, c08c, c08f,c08g (794) 794
general processes of compounding (794) 794
working-up (794) 794
processes for applying liquids or other fluent materials tosurfaces, in general (778) 778
layered products (770) 770
layered products, i.e. products built-up of strata of flat ornon-flat, e.g. cellular or honeycomb, form (770) 770
agriculture (768) 768
animal husbandry (768) 768
fishing (768) 768
forestry (768) 768
hunting (768) 768
trapping (768) 768
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (761) 761
biocides, e.g. as disinfectants, as pesticides, as herbicides (704) 704
pest repellants or attractants (704) 704
plant growth regulators (704) 704
preservation of bodies of humans or animals or plants or partsthereof (704) 704
heterocyclic compounds (680) 680
preparations for medical, dental, or toilet purposes (676) 676
beer (613) 613
biochemistry (613) 613
enzymology (613) 613
microbiology (613) 613
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English (23057) 23057
German (5904) 5904
French (5032) 5032
Chinese (4436) 4436
Spanish (1462) 1462
Russian (1301) 1301
Portuguese (756) 756
Italian (621) 621
Korean (537) 537
Romanian (306) 306
Finnish (240) 240
Japanese (151) 151
Danish (145) 145
Dutch (119) 119
Swedish (113) 113
Polish (90) 90
Turkish (81) 81
Norwegian (71) 71
Ukrainian (42) 42
Slovenian (25) 25
Czech (23) 23
Bulgarian (22) 22
Hungarian (17) 17
Lithuanian (13) 13
Croatian (9) 9
Greek (7) 7
Latvian (7) 7
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08/2018
Provided is a method for forming chrome-free retanned leather, including: (a) contacting wet white (chrome-free tanned hide) with a retanning mixture... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
05/2019
The present invention discloses water utilization during leather manufacture is inevitable as it is important for diffusion and distribution of chemicals in... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
05/2018
A method for forming chrome-free retanned leather includng: (a) contacting wet white with from 1% to 8%, by solids weight, based on the wet weight of wet... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
01/2019
The invention relates to a composition containing an acetal of an aldehydic tanning agent for tanning hides and/or pelts and to a method for tanning hides... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
06/2018
The present invention describes a fully bio-degradable probiotic composition and its method of use as leather tanning auxiliary to offer a green technology to... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
12/2018
Uso de compuestos de fórmula (I), en solitario o como una mezcla de los mismos, en forma de una solución acuosa**Fórmula** en la que R1 y R2, iguales o... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
11/2018
Un proceso para la producción de cuero, pieles o pellejos curtidos mediante curtido no metálico, que comprende la etapa de curtir un cuero, piel o pellejo... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | ORGANIC CHEMISTRY | CHEMISTRY | HIDES | HETEROCYCLIC COMPOUNDS | LEATHER | COMPOSITIONS FOR TANNING
Patent
04/2018
Un método para tratar por lo menos un sustrato de piel animal que comprende agitar, durante por lo menos un primer período de tiempo, el sustrato de piel... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
04/2018
Procedimiento para el curtido de pieles de animales, con las siguientes etapas: - remojar las pieles de animales en un líquido con un valor pH situado en el... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
12/2017
Un método para curtir una piel [piel (H), de aquí en adelante], en donde dicho método comprende el tratamiento de una piel para curtir [piel (Ht), de aquí en... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
11/2017
Procedimiento de curtido de pieles que comprende: a) una etapa de piquelado que consiste en sumergir las pieles en un baño con ácido y sal, seguida de b) una... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
11/2017
La utilización de agua durante la manufactura de cuero resulta inevitable debido a que es importante para la difusión y distribución de los productos químicos... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
07/2017
Animal skin substrate treatment apparatus and method An apparatus for treating at least one animal skin substrate with a multiplicity of solid particles... 
PELTS | SKINS | CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING | METALLURGY | APPARATUS THEREFOR | CHEMISTRY | HIDES | LEATHER | COMPOSITIONS FOR TANNING
Patent
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