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:
Aug. 06, 2013
Filed:
Apr. 28, 2011
Brian J. Tighe, Solihull, GB;
Muriel Nasso, Putney Hill, GB;
Beverley Benning, Aldridge Walsall, GB;
Frank F. Molock, Jr., Orange Park, FL (US);
Brian J. Tighe, Solihull, GB;
Muriel Nasso, Putney Hill, GB;
Beverley Benning, Aldridge Walsall, GB;
Frank F. Molock, Jr., Orange Park, FL (US);
Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US);
Abstract
The present invention relates to compositions comprising a polymeric substrate comprising at least one volume excluding polymer. In one embodiment, the present invention provides polymeric articles that are capable of acting as osmotic drivers. The articles are capable of maintaining a desired water balance by moving water in or out of a substrate to maintain cation concentration equilibrium between the substrate and its environment.