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.

Date of Patent:
Dec. 03, 2024

Filed:

Nov. 18, 2019
Applicant:

Regeneron Pharmaceuticals, Inc., Tarrytown, NY (US);

Inventors:

Kathir Muthusamy, Cheshire, CT (US);

Jiann Kae Luo, Tarrytown, NY (US);

Assignee:

Regeneron Pharmaceuticals, Inc., Tarrytown, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/68 (2006.01); C07K 16/18 (2006.01); C07K 16/46 (2006.01); G01N 21/33 (2006.01); G01N 21/64 (2006.01); G01N 27/447 (2006.01);
U.S. Cl.
CPC ...
G01N 33/6854 (2013.01); C07K 16/18 (2013.01); C07K 16/468 (2013.01); G01N 21/33 (2013.01); G01N 21/6428 (2013.01); C07K 2317/31 (2013.01); C07K 2317/526 (2013.01); G01N 27/44726 (2013.01); G01N 27/44795 (2013.01); G01N 2201/06113 (2013.01);
Abstract

Improved capillary zone electrophoresis (CZE), affinity capillary electrophoresis (ACE), and partially filled-ACE (PF-ACE) systems and methods for the detection and quantification of specific molecular entities in a mixture thereof are provided. During manufacturing, heterodimeric bispecific antibodies are often produced along with homodimer species, which can confound quantification of the bispecific antibody. Disclosed are capillary electrophoretic systems and methods of detecting a specific homodimer in the mixture of bispecific heterodimer and homodimers. A ligand capable of binding one of the subunits of the bispecific antibody is contacted with the mixture to form a complex having a reduced electrophoretic mobility, thereby enabling detection of the unbound homodimer.


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Muthusamy, Kathir. (2024). Multimeric protein purity determination (U.S. Patent No. 12158473). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12158473

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