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. 22, 2019
Filed:
Jun. 26, 2015
Merck Patent Gmbh, Darmstadt, DE;
Ralf Guenther, Griesheim, DE;
Stefan Becker, Darmstadt, DE;
Laura Rhiel, Frankfurt am Main, DE;
Bjoern Hock, Maintal, DE;
Christian Schroeter, Darmstadt, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
The invention relates to anti-TNFα antibodies which are engineered to exhibit a pH-sensitive antigen binding. The invention is preferably directed to anti-TNFα antibody adalimumab (Humira®) or biologically active variants and fragments thereof, wherein the original adalimumab antibody or variant or fragment thereof is engineered by modifications of amino acid sequence within the variable regions. Specifically, the invention relates to adalimumab or biologically active variants or fragments thereof, wherein the CDR domains are modified by replacing one or more amino acid residues by histidine residues.