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:
Feb. 17, 2004
Filed:
Nov. 08, 2001
Applicant:
Inventors:
Robert S. Ward, Lafayette, CA (US);
Sallie K. Coviello, San Francisco, CA (US);
Assignee:
The Polymer Technology Group Incorporated, Berkeley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/44 ;
U.S. Cl.
CPC ...
A61F 2/44 ;
Abstract
Devices implantable in animal bodies, possibly configured as self-inflating spinal disc prostheses. Alternatively, non-implantable water-desalination and/or purification devices. The devices include specified types of water-absorbing solute encapsulated by non-porous, water-permeable polymer membranes having specified properties. Also, methods of using the devices in biomedical applications or water treatment.