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Takeda patents boronate ester therapeutic compounds

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

The European Patent Office published Takeda Pharmaceutical Company Limited's patent application EP3536693A1 for boronate ester compounds and pharmaceutical compositions. The invention, with inventor Eric L. Elliott, covers therapeutic applications including anti-cancer and analgesic/anti-inflammatory uses, classified under IPC C07F 5/02. The patent is designated for all European member states and will remain in force for 20 years from the filing date.

What changed

The EPO published patent application EP3536693A1 for Takeda Pharmaceutical Company Limited on March 25, 2026. The application covers boronate ester compounds and pharmaceutical compositions, classified under C07F 5/02 (boron compounds). The designated states include 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, SE, SI, SK, TR. IPC classifications include A61P 35/00 (anti-cancer) and A61P 29/00 (analgesic/anti-inflammatory).

This patent publication does not create new compliance obligations for pharmaceutical manufacturers or competitors. Entities developing similar boronate ester therapeutics should review the patent claims for freedom-to-operate concerns or licensing opportunities. No action is required from the patent applicant at this publication stage.

Source document (simplified)

← EPO Patent Bulletin

BORONATE ESTER COMPOUNDS AND PHARMACEUTICAL COMPOSITIONS THEREOF

Publication EP3536693A1 Kind: A1 Mar 25, 2026

Applicants

Takeda Pharmaceutical Company Limited

Inventors

ELLIOTT, Eric L.

IPC Classifications

C07F 5/02 20060101AFI20200724BHEP C07F 5/04 20060101ALI20200724BHEP C07K 5/06 20060101ALI20200724BHEP A61K 38/05 20060101ALI20200724BHEP A61P 35/00 20060101ALI20200724BHEP A61P 29/00 20060101ALI20200724BHEP

Designated States

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, SE, SI, SK, TR

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Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP3536693A1

Who this affects

Applies to
Pharmaceutical companies Drug manufacturers
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Pharmaceutical Patents Intellectual Property
Geographic scope
European Union EU

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Topics
Intellectual Property Healthcare

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