Methods for leather processing including liquid enzyme formulation
Patent 5102422 Issued on April 7, 1992. Estimated Expiration Date: 
April 7, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 7, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3549495 3557002 3558430 3623950 3741902 3781212 Enzymatic bating method Method for preparing tannable pelts from animal skins and hides Method for preparing tannable pelts from animal skins and hides Enzymatic unhairing method Patent #: 4636222 InventorsApplicationNo. 152020 filed on 02/03/1988US Classes:8/94.15, Treatment of untanned skins or hides8/94.1R, TREATMENT OF HIDES, SKINS, FEATHERS AND ANIMAL TISSUES8/94.16, Depilating435/265Depilating hides, bating, or hide treating using enzyme or micro-organismExaminersPrimary: Clingman, A. LionelAssistant: McNally, John F. Attorney, Agent or FirmForeign Patent References
International ClassC14C 001/00Foreign Application Priority Data1987-02-13 DEAbstractLiquid 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.Other References
Field of SearchStablizing an enzyme by forming a mixture, an adduct or a composition, or formation of an adduct or enzyme conjugateDepilating hides, bating, or hide treating using enzyme or micro-organism Treating animal or plant material or micro-organism TREATMENT OF HIDES, SKINS, FEATHERS AND ANIMAL TISSUES Treatment of untanned skins or hides Depilating Stabilized enzymes or enzymes complexed with nonenzyme (e.g., liposomes, etc.) Entrapped within the carrier, e.g., gel, hollow fibre, etc. |
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