Wireless Power Transfer Current Sensing Patent
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)
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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