logo

For the Inventor, By the Inventor

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.:

US 8974813 B1

PDFFull Text
Date of Patent:
Mar. 10, 2015

Filed:

Jun. 27, 2007

Hydrophilic polyurethane compositions

Applicants:

Jukka Tuominen, Kuusisto, FI;

Amaia Zurutuza, Glasgow, GB;

Mark Livingstone, Irvine, GB;

Janet Anne Halliday, West Lothian, GB;

Inventors:

Jukka Tuominen, Kuusisto, FI;

Amaia Zurutuza, Glasgow, GB;

Mark Livingstone, Irvine, GB;

Janet Anne Halliday, West Lothian, GB;

Assignee:

Ferring B.V., Hoofddorp, NL;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Kortney L Kinkel

Assistant Examiner:

Melissa Javier

Int. Cl.
CPC ...
A61F 6/14 (2006.01); A61F 13/00 (2006.01); A61K 47/30 (2006.01); C08G 18/20 (2006.01); A61K 9/00 (2006.01); C08G 18/48 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); A61K 47/34 (2006.01);
U.S. Cl.
CPC ...
C08G 18/2063 (2013.01); A61K 9/0024 (2013.01); A61K 9/0036 (2013.01); C08G 18/4841 (2013.01); C08G 18/73 (2013.01); C08G 18/758 (2013.01); A61K 47/34 (2013.01);
Abstract

A water-swellable linear polymer is made by reacting together a polyethylene oxide of number average molecular weight less than 4,000, an aliphatic diol, and a difunctional diisocyanate. Controlled release composition comprises the polymer together with an active agent. The polymer is able to take up pharmaceutically active agents of molecular weight 200 to 20,000.

Find Patent Forward Citations

Tuominen, Jukka. (2015). Hydrophilic polyurethane compositions (U.S. Patent No. 8974813). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8974813

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…