Inventor · disambiguated record
Evert Alle Helfrich
Also filed as: HELFRICH EVERT ALLE
5 granted patents·3 pending applications·29 citations·filing 2009–2020
76Inventor score
Files withKONINKL PHILIPS NV2KONINKLIJKE PHILIPS NV2DE VRIES JOHANNES HOTZE BERNHARD1EDWARDS DAINIA1KONINKL PHILIPS ELECTRONICS NV1
Top patents by PatentIndex Score
8 records- 0191US9326594B2Position sensing toothbrushKONINKL PHILIPS NV·Filed 2015·Granted May 3, 2016·12 cites·7 claims
- 0281US8667634B2System for axial bristle motion in a teeth cleaning mouthpieceSTEUR JELTE·Filed 2009·Granted Mar 11, 2014·12 cites·3 claims
- 0373US9049920B2Position sensing toothbrushKONINKL PHILIPS NV·Filed 2013·Granted Jun 9, 2015·5 cites·4 claims
- 0470US11648099B2Personal care device actuator with rattle mitigationKONINKLIJKE PHILIPS NV·Filed 2020·Granted May 16, 2023·0 cites·10 claims
- 0558US10537414B2Personal care device actuator with rattle mitigationKONINKLIJKE PHILIPS NV·Filed 2015·Granted Jan 21, 2020·0 cites·8 claims
- 0653US2011247159A1Dental cleaning mouthpiece with replaceable bristle fieldsKONINKL PHILIPS ELECTRONICS NV·Filed 2009·Application pending·0 cites
- 0742US2013330687A1Interface structure for liquid/air burst dental cleaning applianceEDWARDS DAINIA·Filed 2012·Application pending·0 cites
- 0839US2012246858A1Position sensing toothbrushDE VRIES JOHANNES HOTZE BERNHARD·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →