Changeflow GovPing Healthcare & Life Sciences Selective Reduction of Cysteine Residues in IL-...
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Selective Reduction of Cysteine Residues in IL-17 Antibodies

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Summary

The European Patent Office published patent application EP3237445A1 by Novartis AG, covering methods for the selective reduction of cysteine residues in IL-17 antibodies. The application names HEITZMANN, Markus and WINKLER, Johann as inventors, with international patent classification codes C07K 16/24 and A61K 39/395. This A1 publication includes the European search report and designates all EU member states plus Switzerland, Norway, and other European Economic Area countries.

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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 EP3237445A1 covering methods for selective reduction of cysteine residues in IL-17 antibodies. The application was filed by Novartis AG with inventors HEITZMANN, Markus and WINKLER, Johann. This A1 publication makes the technical disclosure publicly available and initiates the formal examination period. Competitors developing similar antibody modification technologies should review this filing for potential overlap with their own IP positions.

Archived snapshot

Apr 23, 2026

GovPing 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.

← EPO Patent Bulletin

SELECTIVE REDUCTION OF CYSTEINE RESIDUES IN IL-17 ANTIBODIES

Publication EP3237445A1 Kind: A1 Apr 15, 2026

Applicants

Novartis AG

Inventors

HEITZMANN, Markus, WINKLER, Johann

IPC Classifications

C07K 16/24 20060101AFI20160704BHEP A61K 39/395 20060101ALI20160704BHEP

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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Last updated

Classification

Agency
EPO
Published
April 15th, 2026
Instrument
Notice
Branch
International
Legal weight
Non-binding
Stage
Final
Change scope
Minor

Who this affects

Applies to
Pharmaceutical companies
Industry sector
3254.1 Biotechnology
Activity scope
Patent application Antibody research Pharmaceutical IP
Geographic scope
European Union EU

Taxonomy

Primary area
Intellectual Property
Operational domain
Regulatory Affairs
Topics
Pharmaceuticals Biotechnology

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