U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

Newsletter  PatentStorm News

Make the Most of PatentStorm

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest patents by subscribing to an RSS feed.

Got questions? Ask a Patent Expert!

Registered users: Manage your profile, comments and alerts.

 

US Patent 5102422 - Methods for leather processing including liquid enzyme formulation

US Patent Issued on April 7, 1992
Estimated Patent Expiration Date: Icon_subject April 7, 2009Estimated 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.
loading...


View Patent Images (PDF)
(Registered users only)

Abstract

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.

Other References

  • Kazandjian et al., "Enzymatic Analysis in Organic Solvents" Biotechnology and Bioengineering vol. XXVIII pp. 417-21 (1986)
  • Zaks, et al., "Enzyme-catalyzed process in organic solvents" Proc. Natl. Acad. Science USA vol. 82, pp. 3192-96. May (1985

Inventors

Application

No. 152020 filed on 02/03/1988

US 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-organism

Field of Search

435/188, Stablizing an enzyme by forming a mixture, an adduct or a composition, or formation of an adduct or enzyme conjugate435/265, Depilating hides, bating, or hide treating using enzyme or micro-organism435/267, Treating animal or plant material or micro-organism8/94.1R, TREATMENT OF HIDES, SKINS, FEATHERS AND ANIMAL TISSUES8/94.15, Treatment of untanned skins or hides8/94.16, Depilating424/94.3, Stabilized enzymes or enzymes complexed with nonenzyme (e.g., liposomes, etc.)530/817Entrapped within the carrier, e.g., gel, hollow fibre, etc.

Examiners

Primary: Clingman, A. Lionel
Assistant: McNally, John F.

Attorney, Agent or Firm

US Patent References

3549495, 3557002, 3558430, 3623950, 3741902, 3781212, 3939040, Enzymatic bating method
Issued on: 02/17/1976
Inventor: Monsheimer ,   et al.
3966551, Method for preparing tannable pelts from animal skins and hides
Issued on: 06/29/1976
Inventor: Monsheimer ,   et al.
3986926, Method for preparing tannable pelts from animal skins and hides
Issued on: 10/19/1976
Inventor: Monsheimer ,   et al.
4636222Enzymatic unhairing method
Issued on: 01/13/1987
Inventor: Pfleiderer ,   et al.

Foreign Patent References

  • 200519 DE. 06/21/2010
  • 288095 DE. 11/21/2010
  • 847947 DE. 11/21/2010
  • 927464 DE. 04/21/2010
  • 941811 DE. 10/21/2010
  • 974813 DE. 02/21/2010
  • 976107 DE. 02/21/2010
  • 976602 DE. 02/21/2010
  • 976928 DE. 02/21/2010
  • 941680 DE. 03/21/2010
  • 975095 DE. 05/21/2010
  • 1022748 DE. 01/21/2010
  • 1023183 DE. 01/21/2010
  • 1026038 DE. 03/21/2010
  • 1034317 DE. 05/21/2010
  • 1120066 DE. 12/21/1961
  • 1134474 DE. 08/21/1962
  • 1155560 DE. 10/21/1963
  • 1203416 DE. 10/21/1965
  • 1211349 DE. 02/21/1966
  • 1219620 DE. 06/21/1966
  • 1230169 DE. 12/21/1966
  • 1282837 DE. 11/21/1968
  • 1282838 DE. 11/21/1968
  • 1288728 DE. 02/21/1969
  • 2059453 DE. 04/21/1972
  • 3312840 DE. 10/21/1984
  • 631486 CH. 08/21/1982

International Class

C14C 001/00

Foreign Application Priority Data

1987-02-13 DE

Comments

No comments for this page
 
 
Forgot password?
Register here