Inventor · disambiguated record
Wilhelmus Johannes Maria Van Wijk
Also filed as: VAN WIJK WILHELMUS J M · VAN WIJK WILHELMUS JOHANNES MA · VAN WIJK WILHELMUS JOHANNES MARIA
10 granted patents·102 citations·filing 1988–2013
89Inventor score
Files withBOSCH GMBH ROBERT5DOORNES TRANSMISSIE BV3BRANDSMA ARJEN1VAN WIJK WILHELMUS JOHANNES MARIA1
Top patents by PatentIndex Score
10 records- 0168US6682451B1Hydraulic control for a continuously variable transmissionBOSCH GMBH ROBERT·Filed 1999·Granted Jan 27, 2004·20 cites·23 claims
- 0267US5971876AHydraulic emergency control for changing hydraulic oil pressure in the hydraulic conical pulley axial adjustment mechanism of a continuously variable transmission for varying the clamping force ratioBOSCH GMBH ROBERT·Filed 1996·Granted Oct 26, 1999·22 cites·16 claims
- 0361US8118707B2Method for controlling a belt-type continuously variable transmission and a friction clutch in a vehicular drive lineBRANDSMA ARJEN·Filed 2005·Granted Feb 21, 2012·8 cites·3 claims
- 0457US9829091B2Continuously variable transmission with a hydraulic control systemBOSCH GMBH ROBERT·Filed 2013·Granted Nov 28, 2017·2 cites·9 claims
- 0555US5937729AHydraulic emergency control for transmission ratio-dependent variation of the hydraulic oil pressure in the hydraulic conical pulley axial adjustment mechanisms of a continuously variable transmissionBOSCH GMBH ROBERT·Filed 1996·Granted Aug 17, 1999·15 cites·11 claims
- 0655US5885186AContinuously variable transmissionDOORNES TRANSMISSIE BV·Filed 1996·Granted Mar 23, 1999·16 cites·15 claims
- 0754US9316239B2Hydraulic control system in a continuously variable transmissionVAN WIJK WILHELMUS JOHANNES MARIA·Filed 2011·Granted Apr 19, 2016·1 cites·10 claims
- 0852US6517455B1Continuously variable transmission with an electro-hydraulic control system and method for operating such transmissionDOORNES TRANSMISSIE BV·Filed 2000·Granted Feb 11, 2003·6 cites·6 claims
- 0943US6623387B1Hydraulic controller for a continuously variable transmissionBOSCH GMBH ROBERT·Filed 1999·Granted Sep 23, 2003·8 cites·5 claims
- 1029US4861318AControl of an infinitely variable transmission of a vehicleDOORNES TRANSMISSIE BV·Filed 1988·Granted Aug 29, 1989·4 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Wilhelmus Johannes Maria Van Wijk files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →