The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2004
Filed:
Nov. 19, 2002
Applicant:
Inventors:
Palanisamy Thanikaivelan, Chennai, IN;
Jonnalagadda Raghava Rao, Chennai, IN;
Balachandran Unni Nair, Chennai, IN;
Thirumalachari Ramasami, Chennai, IN;
Assignee:
Council of Scientific and Industrial Research, New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C14B 1/00 ;
U.S. Cl.
CPC ...
C14B 1/00 ;
Abstract
The present invention relates to an eco-friendly beam house process for de-hairing of leather using commercially available enzymes that obviates the use of lime and other alkalis. The present invention also provides an alternate process for opening the fibers of leather using commercially available enzymes. The present invention further provides a three-step process for tanning hide or skin in a narrow pH range of from about 7.5 to about 8.5.