Changeflow GovPing Energy Wireless Power Transfer Current Sensing Patent
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Wireless Power Transfer Current Sensing Patent

Favicon for changeflow.com ChangeBridge: EPO Bulletin - Power Supply (H02J)
Published March 25th, 2026
Detected April 1st, 2026
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Summary

The European Patent Office published patent EP4121990A1 granting InductEV Inc. exclusive rights to current sensing technology in wireless power transfer systems. The patent covers methods and apparatus for sensing current during wireless power transfer operations. Third parties developing or manufacturing wireless power transfer systems may need to assess licensing requirements or freedom-to-operate.

What changed

The EPO published patent EP4121990A1 titled 'Current Sensing in a Wireless Power Transfer System,' granted to InductEV Inc. (inventors Wolgemuth, Cohen, and Hackman). The patent covers current sensing techniques applicable to wireless power transfer systems including EV charging applications (B60L 53/12). The designated contracting states include all EU member states plus other European Patent Convention signatories.

Manufacturers developing wireless power transfer products or systems should review this patent to assess whether their technology falls within the scope of claims 1-n. Companies manufacturing or selling wireless charging systems in Europe may need to evaluate licensing arrangements with InductEV or assess alternative designs to avoid infringement. This patent does not impose compliance deadlines or regulatory obligations but creates potential IP infringement risk for competitors.

Source document (simplified)

← EPO Patent Bulletin

CURRENT SENSING IN A WIRELESS POWER TRANSFER SYSTEM

Publication EP4121990A1 Kind: A1 Mar 25, 2026

Applicants

InductEV Inc.

Inventors

WOLGEMUTH, John M., COHEN, Benjamin H., HACKMAN, Daniel S.

IPC Classifications

G01R 1/20 20060101AFI20230816BHEP G01R 19/00 20060101ALI20230816BHEP H01F 38/14 20060101ALI20230816BHEP H02J 7/04 20060101ALI20230816BHEP H02J 7/12 20060101ALI20230816BHEP H02J 50/10 20160101ALI20230816BHEP H02J 50/12 20160101ALI20230816BHEP B60L 53/12 20190101ALI20230816BHEP H01F 27/40 20060101ALI20230816BHEP

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

Current Sensing in a Wireless Power Transfer System

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Binding
Stage
Final
Change scope
Minor
Document ID
EP4121990A1

Who this affects

Applies to
Technology companies Manufacturers
Industry sector
3341 Computer & Electronics Manufacturing 3361 Automotive Manufacturing
Activity scope
Patent Grant
Geographic scope
European Union EU

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Energy Transportation

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