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:
May. 14, 2013
Filed:
Jun. 18, 2009
Applicants:
Chen LU, Germantown, TN (US);
Jian Tan, Bartlett, TN (US);
Assignee:
Buckman Laboratories International, Inc., Memphis, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 21/10 (2006.01); C08F 16/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Low amidine content poly(N-vinylformamide-co-vinylamine) (PVAm), is described, as well as processes of making and providing same in fresh or aged formats, and the usage of such polymer to increase papermaking retention and drainage rate and enhance paper dry strength, and other applications.
Lu, Chen. (2013). Low amidine content polyvinylamine, compositions containing same and methods (U.S. Patent No. 8440768). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8440768
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile