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| Number | Title | Issue Date |
| 7439054 | Bioreactor system for biological degradation of oily sludge A 10,000 gallon sequencing batch reactor tank for the on-site bio-degradation of oily sludge. Bacteria already present in and adapted to oily sludge degrade the hydrocarbons found in oily sludge within two weeks from 20,000 ppm to less than 100 ppm. A degradation cy... | 10/21/2008 |
| 7198647 | Process for lime and sulfide free unhairing of skins or hides using animal and/or plant enzymes The present invention relates to a process for lime- and sulfide-free unhairing of skins/hides using animal and/or herbal (plant) enzymes. The process comprises presoaking the skins or hides in water for 2–6 hours, pasting an enzyme solution of animal or plant ori... | 04/03/2007 |
| 7186546 | Process for the preparation of alkaline protease The present invention relates to a process for the preparation of alkaline protease using a fungal culture of the order entomophthorales and to the use of the said protease in the pretanning processes of leather manufacture. ... | 03/06/2007 |
| 7022358 | Collagen membrane made from porcine skin Collagen membranes are formed from porcine rinds (i.e., pig skins) for us in a variety of applications and, most preferably, for wrapping food products, such as hams and the like. First, after removing skins from the porcine, the skins are promptly frozen. In later ... | 04/04/2006 |
| 7013838 | Bleached expanded pigskin and products Pigskin is processed to provide a bleached, expanded skin used in dog treat or chew products. The raw pigskin is dehaired and then daubed with an alkali mixture of an alkali liquid, alkali enzymes and lime, the mixture having a pH of greater than or equal to 12. The... | 03/21/2006 |
| 6957554 | Dehairing and fiber opening process for complete elimination of lime and sodium sulfide The use of lime and sodium sulfide in leather making creates a lot of environmental concern. However, there is no commercial beam house process that could totally eliminate the use of lime and sodium sulfide. In this invention, a novel bio-chemical process has been ... | 10/25/2005 |
| 6949344 | Hair analysis method A method the direct analysis of an analyte in keratinized structures, e.g., hair and fingernails, which comprises preparing a mixture containing a low redox potential activator compound such as dithiothreitol or dithioerythritol, an enzyme suitable for the digestion... | 09/27/2005 |
| 6867032 | Enzymatic unhairing agent for use in tanning for producing leather and method for enzymatic unhairing treatment The invention provides an enzymatic unhairing agent for use in an unhairing step in tanning for producing leather comprising an alkaline protease as an active component; a treatment solution comprising a pH-adjusting agent and the enzymatic unhairing agent; a method... | 03/15/2005 |
| 6777219 | Process for the preparation of alkaline protease The present invention relates to a process for the preparation of alkaline protease using a fungal culture of the order entomophthorales and to the use of the said protease in the pretanning processes of leather manufacture. ... | 08/17/2004 |
| 6531310 | Use of microorganisms for processing bioprosthetic tissue A method is disclosed for processing tissue by inoculating the tissue with a solution having microorganisms, where the microorganisms are selected to produce compounds that process the tissue. The tissue is incubated with the inoculated microorganisms und... | 03/11/2003 |
| 6451586 | Enzyme preparation containing protease Powdered or granulated enzyme preparations, free of surface active agents and containing a protease as the active enzyme, wherein the protease is present as a tannin complex, with the proviso that the enzyme preparation consists of at least 50 percent by ... | 09/17/2002 |
| 6440692 | Method of treating hairs or feathers using microorganisms Large amounts of hairs and feathers can be decomposed and refined by treatment in an oxygen-containing gas stream with a fungus that can decompose hairs and feathers. The resulting decomposed and refined hairs and feathers are useful as a fertilizer.... | 08/27/2002 |
| 6350582 | Hair analysis method A method for the direct analysis of the presence of an analyte which becomes embedded in keratinized structures, e.g., hair, fingernails and toenails, from the bloodstream of a subject which comprises preparing a mixture containing dithiothreitol or dithi... | 02/26/2002 |
| 6346244 | Fungal protein disulfide isomerase The present invention relates to protein disulfide isomerases which are encoded by a nucleic acid sequence which hybridizes with (i) the DNA sequence of SEQ ID NO:1 or (ii) the DNA sequence of SEQ ID NO:2, under the following conditions: presoaking in 5×... | 02/12/2002 |
| 6203791 | Lecithin-based microemulsions containing proteolytic enzymes and method for permanent enzymic depilation The invention refers to depilatory preparations containing: proteolytic enzymes solubilized in microemulsions, formed with lecithin, aliphatic hydrocarbon, alipathic alcohol and buffer solution pH 7 to 9, value corresponding to the pH range near the optim... | 03/20/2001 |
| 6200789 | Enzymatic treatment of proteinaceous animal by-product materials to impart cohesion and strength A method of producing useful products from animal by-products by incubating animal by-products in a transglutaminase-containing solution to produce transglutaminase-treated animal by-products, compressing the transglutaminase-treated animal by-products to... | 03/13/2001 |
| 6121041 | Use of microorganisms for decellularizing bioprosthetic tissue A method is disclosed for processing tissue by inoculating the tissue with a solution having microorganisms, where the microorganisms are selected to produce compounds that process the tissue. The tissue is incubated with the inoculated microorganisms und... | 09/19/2000 |
| 6051414 | Process for defuzzing and depilling cellulosic fabrics This invention is in the field of Bio-Polishing. More specifically, the invention relates to a process for achieving Bio-Polishing effects during the manufacture of cellulosic fabrics.... | 04/18/2000 |
| 6037451 | Method of degreasing bone for gelatin manufacture The present invention is a process for degreasing bone for the manufacture of gelatin. A lipase solution at a concentration of greater than 0.1 ppm is added to a collagen containing material and treated for a time sufficient to solubilize the fat containe... | 03/14/2000 |
| 5834299 | Method for dehairing of hides or skins by means of enzymes The invention relates to an environmentally friendly method for dehairing of hides or skins by means of enzymes comprising the following steps: 1) the hides or skins are soaked, 2) the soaked hides or skins are subjected to a main soak, and 3) the thus tr... | 11/10/1998 |
| 5710040 | Stable enzymatic aqueous liquid composition for the production of leather An aqueous liquid composition containing one or more enzymatic active substances and at least 10 wt % to a maximum of (100-x) wt % molasses, wherein x is the fraction of enzymatic active substances in wt % and wherein x is a value from 0.001 to 90, which ... | 01/20/1998 |
| 5670369 | Method for the production of soluble collagen The invention includes an improved method for producing an aqueous solution of soluble collagen. The method comprises the steps of: (A) providing an aqueous ground slurry of insoluble collagen containing insoluble collagen at a first concentration and at a pH ... | 09/23/1997 |
| 5602002 | Process for the production of low-chromium protein hydrolyzates Described is the chemical hydrolysis of partial hydrolysates obtained by the enzymatic decomposition, in aqueous conditions in the presence of alkaline-earth oxides or hydroxides, of protein-containing raw materials containing chromium. This enables prote... | 02/11/1997 |
| 5525509 | Method for the enzymatic liming of skins and hides A method for preparing unhaired hides ready for tanning from hides and skins using proteolytic and lipolytic enzymes in the beamhouse, whereby in at least one of the partial steps of the beamhouse consisting of a) liming in the pH range 11.5-14 and b) bat... | 06/11/1996 |
| 5508195 | Method for liming hides and skins A method for liming hides and skins using a proteolytic enzyme in an aqueous-alkaline float is taught, wherein the liming float has a pH value from 10-14 and contains both thiourea dioxide and an alkaline protease having elastase activity.... | 04/16/1996 |
| 5468476 | Reduction of hair growth Mammalian hair growth is reduced by applying to the skin an inhibitor of nitric oxide synthetase.... | 11/21/1995 |
| 5443750 | Detergent compositions with high activity cellulase and softening clays The present invention relates to detergent compositions comprising a high activity cellulase in combination with a softening clay. In the detergent compositions herein, the cellulase comprises a cellulase of high activity defined by the C14CMC-method. Pre... | 08/22/1995 |
| 5271912 | Enzymatic processing of materials containing chromium and protein Chromium containing protein materials are treated by processes which include the steps of: combining the material to be treated with sufficient water to effect the solubilization of the gelable protein recovered therefrom, and an alkali additive. The mixt... | 12/21/1993 |
| 5102422 | Methods for leather processing including liquid enzyme formulation Liquid enzyme preparations comprising at least one anhydrous organic liquid as a vehicle for one or more enzymes and methods for using such preparations e.g. in beamhouse operations in the commercial production of leather.... | 04/07/1992 |
| 5094946 | Enzymatic processing of materials containing chromium and protein Materials containing both chromium and protein and treated by processes which include the steps of: combining a material to be treated (i.e. containing both chromium and protein) with sufficient water to produce a mixture having from about 75 wt. % water ... | 03/10/1992 |
| 5089414 | Enzymatic soaking method The soaking of hides and skins is enzymatically assisted in a method using an aqueous float having a pH from 9 to 11 which contains A) a lipase having an activity optimum in the pH region from 9 to 11, B) a protease with activity in the pH region from 9 to 11, and ... | 02/18/1992 |
| 4968621 | Method for the wet degreasing of hide and skin stock A method for the wet degreasing of raw hides and skins, pelts, and wet blues under the conditions of enzymatic bating, wherein enzymatic bating of the hide stock is carried out with proteolytic enzymes in the presence of synthetic surface active substance... | 11/06/1990 |
| 4943530 | Liquid enzyme preparations Liquid enzyme preparations comprising at least one anhydrous organic liquid as a vehicle for one or more enzymes and methods for using such preparations e.g. in beamhouse operations in the commercial production of leather.... | 07/24/1990 |
| 4889811 | Methods for making leather Methods for making leather from animal hides and skins in the presence of surface active agents wherein certain phosphonic acid compounds are used in place of, or in combination with, known surface active agents.... | 12/26/1989 |
| 4344762 | Soaking method What is disclosed is a method for soaking preserved skins or hides adaptable to the preparation of leather which comprises soaking said skins or hides in an aqueous bath containing a compound selected from the group of compounds of the formula ##STR1... | 08/17/1982 |
| 4320201 | Method for making collagen sponge for medical and cosmetic uses A process for producing collagen sponge which is insoluble but highly swellable in water, the sponge having a velour-like surface and being particularly suited for medical and cosmetic applications.... | 03/16/1982 |
| 4314801 | Soaking method What is disclosed is a method for soaking dried or salted fur pelts which comprises soaking said pelts in an aqueous bath containing at least one compound selected from the group consisting of compounds of the formula ##STR1## and acid addition salts... | 02/09/1982 |
| 4288556 | Microorganism and proteolytic enzyme derived therefrom A novel culture of the microorganism Streptomyces caligosus DS 14,486 and a novel proteolytic enzyme produced from cultivating the culture are disclosed. The enzyme has utility in the depilation of animal skins.... | 09/08/1981 |
| 4278432 | Soaking method What is disclosed is a method for soaking skins or hides which comprises soaking said skins or hides in an acid bath containing at least one compound selected from the group of compounds having one of the formulas R--SH and ##STR1## wherein R is alky... | 07/14/1981 |
| 4273876 | Enzymatic bating method What is disclosed is a method for the enzymatic bating of pelts with simultaneous removal of scud, which method comprises bating said pelts in the acid pH range in the presence of an amylase and a protease.... | 06/16/1981 |
