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Beta-Hydroxybutyrate Ester Therapeutic Compounds and Compositions

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Published March 25th, 2026
Detected April 1st, 2026
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Summary

The European Patent Office published patent application EP3465335A1 for medium chain fatty acid esters of beta-hydroxybutyrate and butanediol, filed by The J. David Gladstone Institutes, The Regents of the University of California, and Ithaca College. The patent covers therapeutic compounds with applications across multiple disease indications including cancer (A61P 35/00), neurological conditions (A61P 25/28, 25/16, 25/08), kidney disease (A61P 13/12), and cardiovascular conditions (A61P 9/10).

What changed

The EPO published patent EP3465335A1 granting intellectual property protection for medium chain fatty acid ester compounds of beta-hydroxybutyrate and butanediol as therapeutic agents. The patent names Eric Verdin, Scott Ulrich, and John Newman as inventors, with applicants including The J. David Gladstone Institutes, The Regents of the University of California, and Ithaca College. The patent covers compositions and methods for using these compounds across eight therapeutic categories spanning oncology, neurology, nephrology, and cardiovascular applications.

Pharmaceutical companies and researchers developing ketone-based therapeutics should review this patent landscape to assess freedom-to-operate considerations. Drug manufacturers working with beta-hydroxybutyrate compounds may need to evaluate licensing requirements or design-around strategies. No compliance deadline applies to this patent publication; entities seeking protection for competing compounds should file before any conflicting applications mature.

Source document (simplified)

← EPO Patent Bulletin

MEDIUM CHAIN FATTY ACID ESTERS OF BETA-HYDROXYBUTYRATE AND BUTANEDIOL AND COMPOSITIONS AND METHODS FOR USING SAME

Publication EP3465335A1 Kind: A1 Mar 25, 2026

Applicants

The J. David Gladstone Institutes, The Regents of the University of California, Ithaca College

Inventors

VERDIN, Eric, ULRICH, Scott, NEWMAN, John

IPC Classifications

A61K 31/23 20060101AFI20251110BHEP A61P 35/00 20060101ALI20251110BHEP A61P 25/28 20060101ALI20251110BHEP A61P 25/16 20060101ALI20251110BHEP A61P 25/08 20060101ALI20251110BHEP A61P 13/12 20060101ALI20251110BHEP A61P 9/10 20060101ALI20251110BHEP G02B 1/04 20060101ALI20251110BHEP

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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Named provisions

Medium Chain Fatty Acid Esters of Beta-Hydroxybutyrate Butanediol Compositions Methods for Using Same

Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP3465335A1

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies Healthcare providers
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Patent Protection Therapeutic Compound Development
Geographic scope
European Union EU

Taxonomy

Primary area
Healthcare
Operational domain
Legal
Topics
Pharmaceuticals Intellectual Property

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