Inventor · disambiguated record
Christopher R. Yahnker
Also filed as: YAHNKER CHRISTOPHER · YAHNKER CHRISTOPHER R · YAHNKER CHRISTOPHER RYAN
47 granted patents·10 pending applications·4,264 citations·filing 2000–2021
99Inventor score
Files withBLACK & DECKER INC28PENTAIR WATER POOL & SPA INC18STILES JR ROBERT W6EVATRAN GROUP INC2MOORE GARY STEPHEN1
Top patents by PatentIndex Score
57 records- 0199US7686589B2Pumping system with power optimizationPENTAIR WATER POOL & SPA INC·Filed 2006·Granted Mar 30, 2010·80 cites·3 claims
- 0299US7688028B2Cordless power systemBLACK & DECKER INC·Filed 2005·Granted Mar 30, 2010·1.8k cites·26 claims
- 0399US7598705B2Cordless power tool system having cordless power tool and battery pack that employ cooperating rails and grooves for connection of battery pack to cordless power toolBLACK & DECKER INC·Filed 2008·Granted Oct 6, 2009·41 cites·16 claims
- 0499US7160132B2Battery pack—cordless power device interface systemBLACK & DECKER INC·Filed 2005·Granted Jan 9, 2007·106 cites·15 claims
- 0598US9051930B2Speed controlPENTAIR WATER POOL & SPA INC·Filed 2013·Granted Jun 9, 2015·48 cites·33 claims
- 0698US8500413B2Pumping system with power optimizationSTILES JR ROBERT W·Filed 2010·Granted Aug 6, 2013·59 cites·15 claims
- 0798US8465262B2Speed controlSTILES JR ROBERT W·Filed 2011·Granted Jun 18, 2013·74 cites·31 claims
- 0898US8043070B2Speed controlPENTAIR WATER POOL & SPA INC·Filed 2006·Granted Oct 25, 2011·100 cites·25 claims
- 0998US7868591B2Cordless power systemBLACK & DECKER INC·Filed 2010·Granted Jan 11, 2011·182 cites·13 claims
- 1098US7486047B2Battery pack shipping methodBLACK & DECKER INC·Filed 2005·Granted Feb 3, 2009·44 cites·2 claims
- 1198US7463007B2Battery pack housing and packagingBLACK & DECKER INC·Filed 2005·Granted Dec 9, 2008·44 cites·19 claims
- 1298US7443134B2Battery pack shipping system and methodBLACK & DECKER INC·Filed 2005·Granted Oct 28, 2008·40 cites·2 claims
- 1398US7397219B2Battery pack for transportation and operationBLACK & DECKER INC·Filed 2005·Granted Jul 8, 2008·57 cites·19 claims
- 1498US6304058B2Cordless power tool systemBLACK & DECKER INC·Filed 2000·Granted Oct 16, 2001·96 cites·20 claims
- 1597US8840376B2Pumping system with power optimizationSTILES JR ROBERT W·Filed 2010·Granted Sep 23, 2014·21 cites·6 claims
- 1697US8019479B2Control algorithm of variable speed pumping systemPENTAIR WATER POOL & SPA INC·Filed 2005·Granted Sep 13, 2011·74 cites·16 claims
- 1797US7854597B2Pumping system with two way communicationPENTAIR WATER POOL & SPA INC·Filed 2006·Granted Dec 21, 2010·94 cites·34 claims
- 1897US7686853B2Apparatus for interconnecting battery cells in a battery pack and method thereofBLACK & DECKER INC·Filed 2005·Granted Mar 30, 2010·30 cites·5 claims
- 1997US7453234B2Battery pack—cordless power device interface systemBLACK & DECKER INC·Filed 2005·Granted Nov 18, 2008·35 cites·23 claims
- 2096US9605680B2Control algorithm of variable speed pumping systemPENTAIR WATER POOL & SPA INC·Filed 2014·Granted Mar 28, 2017·17 cites·11 claims
- 2196US7723952B2Cordless power system with system component identification and/or battery pack controlBLACK & DECKER INC·Filed 2005·Granted May 25, 2010·100 cites·18 claims
- 2296US7270910B2Thermal management systems for battery packsBLACK & DECKER INC·Filed 2005·Granted Sep 18, 2007·146 cites·26 claims
- 2395US7602146B2Protection methods, protection circuits and protection devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery packBLACK & DECKER INC·Filed 2008·Granted Oct 13, 2009·58 cites·12 claims
- 2495US7423407B2Cordless power tool system having slidably-engaging power source connectionBLACK & DECKER INC·Filed 2006·Granted Sep 9, 2008·17 cites·19 claims
- 2595US6720689B2Brushless motor having capacitors mounted on sidewall of motor housingBLACK & DECKER INC·Filed 2001·Granted Apr 13, 2004·57 cites·37 claims
- 2695US6570284B1Brushless motor having double insulationBLACK & DECKER INC·Filed 2001·Granted May 27, 2003·58 cites·15 claims
- 2795US6515451B2Cordless power tool systemBLACK & DECKER INC·Filed 2001·Granted Feb 4, 2003·50 cites·15 claims
- 2894US7508171B2Protection methods, protection circuits and protective devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery packBLACK & DECKER INC·Filed 2004·Granted Mar 24, 2009·131 cites·38 claims
- 2994US6653815B2Cordless power tool systemBLACK & DECKER INC·Filed 2002·Granted Nov 25, 2003·43 cites·22 claims
- 3094US6286609B1AC/DC chopper for power toolBLACK & DECKER INC·Filed 2000·Granted Sep 11, 2001·153 cites·27 claims
- 3193US10527042B2Speed controlPENTAIR WATER POOL & SPA INC·Filed 2015·Granted Jan 7, 2020·5 cites·20 claims
- 3293US9932984B2Pumping system with power optimizationPENTAIR WATER POOL & SPA INC·Filed 2014·Granted Apr 3, 2018·11 cites·18 claims
- 3393USD568340SWater pumpPENTAIR WATER POOL & SPA INC·Filed 2006·Granted May 6, 2008·62 cites·1 claims
- 3492US7005831B2Cordless power tool system utilizing battery pack connection system with guide rails and guide slotsBLACK & DECKER INC·Filed 2003·Granted Feb 28, 2006·35 cites·22 claims
- 3592US6972544B2Apparatus for interconnecting battery cells in a battery pack and method thereofBLACK & DECKER INC·Filed 2004·Granted Dec 6, 2005·40 cites·31 claims
- 3691US10240606B2Pumping system with two way communicationSTILES JR ROBERT W·Filed 2014·Granted Mar 26, 2019·6 cites·16 claims
- 3791US7058291B2Brushless DC motorBLACK & DECKER INC·Filed 2001·Granted Jun 6, 2006·47 cites·6 claims
- 3891US6661140B2Brushless motor having housing enabling alignment of stator and sensorBLACK & DECKER INC·Filed 2001·Granted Dec 9, 2003·46 cites·20 claims
- 3989US10240604B2Pumping system with housing and user interfacePENTAIR WATER POOL & SPA INC·Filed 2015·Granted Mar 26, 2019·3 cites·12 claims
- 4089US9739641B2Method and apparatus for controlling stray electromagnetic fields and providing operator feedback when aligning a vehicle with an inductive charging systemEVATRAN GROUP INC·Filed 2016·Granted Aug 22, 2017·10 cites·18 claims
- 4189US6975050B2Brushless DC motorBLACK & DECKER INC·Filed 2001·Granted Dec 13, 2005·45 cites·31 claims
- 4287US11073155B2Pumping system with power optimizationPENTAIR WATER POOL & SPA INC·Filed 2018·Granted Jul 27, 2021·2 cites·17 claims
- 4386US9631950B2Method and apparatus for aligning a vehicle with an inductive charging systemEVATRAN GROUP INC·Filed 2014·Granted Apr 25, 2017·14 cites·7 claims
- 4484USD606562SWater pumpPENTAIR WATER POOL & SPA INC·Filed 2007·Granted Dec 22, 2009·29 cites·1 claims
- 4584US7513993B2Filter devices including a porous bodyPENTAIR WATER POOL & SPA INC·Filed 2005·Granted Apr 7, 2009·21 cites·14 claims
- 4679US10502203B2Speed controlPENTAIR WATER POOL & SPA INC·Filed 2016·Granted Dec 10, 2019·1 cites·18 claims
- 4770US2021108643A1Pumping System with two way communicationPENTAIR WATER POOL & SPA INC·Filed 2020·Application pending·0 cites
- 4870US2021054846A1Control algorithm of variable speed pumping systemPENTAIR WATER POOL & SPA INC·Filed 2020·Application pending·0 cites
- 4970US2021164477A1Pumping system with two way communicationPENTAIR WATER POOL & SPA INC·Filed 2021·Application pending·0 cites
- 5066US10871163B2Pumping system and method having an independent controllerSTILES JR ROBERT W·Filed 2010·Granted Dec 22, 2020·1 cites·6 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →