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:
Jan. 03, 2023
Filed:
May. 24, 2019
Applicant:
E Ink California, Llc, Fremont, CA (US);
Inventor:
HongMei Zang, Fremont, CA (US);
Assignee:
E INK CALIFORNIA, LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 35/00 (2006.01); G02F 1/167 (2019.01); A45D 33/00 (2006.01); C09K 19/54 (2006.01); A61Q 19/00 (2006.01); A61K 8/02 (2006.01); A61K 8/81 (2006.01); G02F 1/1681 (2019.01);
U.S. Cl.
CPC ...
G02F 1/167 (2013.01); A45D 33/00 (2013.01); A61K 8/0208 (2013.01); A61K 8/8129 (2013.01); A61Q 19/00 (2013.01); C09K 19/544 (2013.01); C09K 2019/546 (2013.01); G02F 1/1681 (2019.01);
Abstract
The present invention is directed to a flexible controlled release film for delivering a medicinal or cosmetic agent, e.g., through the skin of a subject, which delivery system comprises (a) a microembossed flexible film including microcells; (b) a liquid composition filled in the microcells wherein said liquid composition comprises the medicinal or cosmetic agent; and (c) a flexible sealing layer to enclose the liquid composition within the microcells.