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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 12560570 B1

PDFFull Text
Date of Patent:
Feb. 24, 2026

Filed:

Dec. 27, 2022

Diffusion resistance layer for analyte sensors

Applicant:

Dexcom, Inc., San Diego, CA (US);

Inventors:

Jiong Zou, San Diego, CA (US);

Robert J. Boock, Carlsbad, CA (US);

Andrew Trinin Dennis, La Jolla, CA (US);

Ted Tang Lee, San Diego, CA (US);

Jeff T. Suri, Fallbrook, CA (US);

David Sze, San Diego, CA (US);

Mark A. Tapsak, Bloomsburg, PA (US);

Huashi Zhang, San Diego, CA (US);

Shanger Wang, San Diego, CA (US);

Assignee:

DEXCOM, INC., San Diego, CA (US);

Attorneys:

Christopher J. Knors

Moore & Van Allen PLLC

Primary Examiner:

Christian Jang

Int. Cl.
CPC ...
G01N 27/327 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); A61B 5/1473 (2006.01); A61B 5/1486 (2006.01); A61K 31/045 (2006.01); A61K 31/137 (2006.01); A61K 31/46 (2006.01); A61K 31/465 (2006.01); A61K 31/485 (2006.01); A61K 31/515 (2006.01); A61K 31/56 (2006.01); A61K 33/00 (2006.01); A61K 38/28 (2006.01); C08L 39/06 (2006.01); C08L 69/00 (2006.01); C08L 75/04 (2006.01); C12N 11/08 (2020.01); C12N 11/089 (2020.01); C12N 11/093 (2020.01); C12Q 1/00 (2006.01); G01N 27/40 (2006.01); G01N 33/66 (2006.01);
U.S. Cl.
CPC ...
G01N 27/3273 (2013.01); A61B 5/0004 (2013.01); A61B 5/14532 (2013.01); A61B 5/14546 (2013.01); A61B 5/1473 (2013.01); A61B 5/1486 (2013.01); A61B 5/14865 (2013.01); A61K 31/045 (2013.01); A61K 31/137 (2013.01); A61K 31/46 (2013.01); A61K 31/465 (2013.01); A61K 31/485 (2013.01); A61K 31/515 (2013.01); A61K 31/56 (2013.01); A61K 33/00 (2013.01); A61K 38/28 (2013.01); C08L 39/06 (2013.01); C08L 69/00 (2013.01); C08L 75/04 (2013.01); C12N 11/08 (2013.01); C12N 11/089 (2020.01); C12N 11/093 (2020.01); C12Q 1/002 (2013.01); C12Q 1/006 (2013.01); G01N 27/40 (2013.01); G01N 33/66 (2013.01); A61B 5/002 (2013.01); A61B 2562/12 (2013.01);
Abstract

Disclosed are devices for determining an analyte concentration (e.g., glucose). The devices comprise a sensor configured to generate a signal associated with a concentration of an analyte and a sensing membrane located over the sensor. The sensing membrane comprises an enzyme layer, wherein the enzyme layer comprises an enzyme and a polymer comprising polyurethane and/or polyurea segments and one or more zwitterionic repeating units. The enzyme layer protects the enzyme and prevents it from leaching from the sensing membrane into a host or deactivating.

Find Patent Forward Citations

Zou, Jiong. (2026). Diffusion resistance layer for analyte sensors (U.S. Patent No. 12560570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12560570

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

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