Genentech Patent - Quaternary Amine ADC Compounds, Apr 2026
Summary
The EPO published patent application EP3226909A1 for Genentech, Inc., covering quaternary amine compounds and antibody-drug conjugates (ADCs) thereof. The application, filed under IPC classifications A61K 47/68, A61P 35/00, and multiple C07D chemical classes, designates all current EPO contracting states including AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, and TR. Named inventors are John A. FLYGARE, Thomas PILLOW, and Leanna STABEN.
About this source
GovPing monitors EPO Patent Bulletin - Pharma (A61K) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 49 changes logged to date.
What changed
The EPO published patent application EP3226909A1, a new intellectual property filing by Genentech, Inc. covering quaternary amine compounds and their antibody-drug conjugate (ADC) compositions. The application is classified under multiple IPC codes including A61K 47/68 (medicinal preparations containing bound substances), A61P 35/00 (antineoplastic agents), and several C07D heterocyclic compound classes, indicating broad chemical and therapeutic scope. Designated contracting states cover all major European patent jurisdictions.
For pharmaceutical and biotechnology companies engaged in ADC research and development, this publication serves as prior art that may affect freedom-to-operate analyses. Competitors developing ADC therapies with quaternary amine linker-payload constructs should evaluate whether their programs fall within the scope of the disclosed claims. This document does not constitute a granted patent enforceable against third parties at this stage.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
QUATERNARY AMINE COMPOUNDS AND ANTIBODY-DRUG CONJUGATES THEREOF
Publication EP3226909A1 Kind: A1 Apr 15, 2026
Applicants
Genentech, Inc.
Inventors
FLYGARE, John A., PILLOW, Thomas, STABEN, Leanna
IPC Classifications
A61K 47/68 20170101AFI20251113BHEP A61P 35/00 20060101ALI20251113BHEP C07D 403/12 20060101ALI20251113BHEP C07D 403/14 20060101ALI20251113BHEP C07D 417/14 20060101ALI20251113BHEP C07D 471/02 20060101ALI20251113BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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