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:
Nov. 23, 2021
Filed:
Mar. 12, 2021
Applicant:
Tearclear Corp., Copley, OH (US);
Inventors:
Michael S. Williams, Keystone Heights, FL (US);
Deniz Hay, Gainesville, FL (US);
Assignee:
TEARCLEAR CORP., Copley, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61J 1/14 (2006.01); A61K 9/00 (2006.01); A61K 9/08 (2006.01); A61K 47/18 (2017.01); B01D 67/00 (2006.01); B01D 69/14 (2006.01); B01D 71/26 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01);
U.S. Cl.
CPC ...
A61J 1/1456 (2015.05); A61J 1/1475 (2013.01); A61K 9/0048 (2013.01); A61K 9/08 (2013.01); A61K 47/186 (2013.01); B01D 67/0004 (2013.01); B01D 69/147 (2013.01); B01D 71/26 (2013.01); B01J 20/265 (2013.01); B01J 20/28016 (2013.01); B01J 20/28042 (2013.01); B01J 2220/52 (2013.01); B01J 2220/56 (2013.01);
Abstract
A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of a hydrophobic polymer/fatty acid blend. The microparticles of hydrophobic polymer/fatty acid blend selectively absorb preservative allowing the drug to remain in solution for delivery.