Inventor
WALTER RICHARD T
US54 patents
⚠️ This page may combine multiple inventors who share the name “WALTER RICHARD T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BLACK & DECKER INC
42 patentsUS6304058B2Oct 16, 2001
Cordless power tool system
BLACK & DECKER INC96 citations99
US5268630ADec 7, 1993
Method and apparatus for varying the sample rate of a fast battery charger
BLACK & DECKER INC146 citations99
US4392101AJul 5, 1983
Method of charging batteries and apparatus therefor
BLACK & DECKER INC390 citations99
US4835409AMay 30, 1989
Corded/cordless dual-mode power-operated device
BLACK & DECKER INC167 citations98
US4835410AMay 30, 1989
Dual-mode corded/cordless system for power-operated devices
BLACK & DECKER INC255 citations98
US7598705B2Oct 6, 2009
Cordless power tool system having cordless power tool and battery pack that employ cooperating rails and grooves for connection of battery pack to cordless power tool
BLACK & DECKER INC41 citations96
US7180200B2Feb 20, 2007
Starter system for portable internal combustion engine electric generators using a portable universal battery pack
BLACK & DECKER INC54 citations96
US7096566B2Aug 29, 2006
Method for making an encapsulated coil structure
BLACK & DECKER INC40 citations96
US7005831B2Feb 28, 2006
Cordless power tool system utilizing battery pack connection system with guide rails and guide slots
BLACK & DECKER INC35 citations96
US6653815B2Nov 25, 2003
Cordless power tool system
BLACK & DECKER INC43 citations96
US6538403B2Mar 25, 2003
Brushless DC motor sensor control system and method
BLACK & DECKER INC74 citations96
US6515451B2Feb 4, 2003
Cordless power tool system
BLACK & DECKER INC50 citations96
US5620808AApr 15, 1997
Battery pack for cordless device
BLACK & DECKER INC45 citations96
US5489484AFeb 6, 1996
Battery pack for cordless device
BLACK & DECKER INC45 citations96
US4388582AJun 14, 1983
Apparatus and method for charging batteries
BLACK & DECKER INC184 citations96
US4793054ADec 27, 1988
Alignment system for permanent magnet motors
BLACK & DECKER INC53 citations95
US7091642B2Aug 15, 2006
Field assembly for a motor and method of making same
BLACK & DECKER INC38 citations94
US7088024B2Aug 8, 2006
Field assembly for a motor and method of making same
BLACK & DECKER INC45 citations94
US5095259AMar 10, 1992
Low voltage, high current capacity connector assembly and mobile power tool and appliance operating system
BLACK & DECKER INC84 citations94
US7814641B2Oct 19, 2010
Method of forming a power tool
BLACK & DECKER INC18 citations93
US7423407B2Sep 9, 2008
Cordless power tool system having slidably-engaging power source connection
BLACK & DECKER INC17 citations93
US7102331B2Sep 5, 2006
Generator with dual cycloconverter for 120/240 VAC operation
BLACK & DECKER INC29 citations93
US7038343B2May 2, 2006
Field assembly for a motor and method of making same
BLACK & DECKER INC51 citations93
US5919585AJul 6, 1999
Battery pack for cordless device
BLACK & DECKER INC20 citations93
US5789101AAug 4, 1998
Battery pack for cordless device
BLACK & DECKER INC30 citations93
US7464455B2Dec 16, 2008
Method for forming an armature for an electric motor
BLACK & DECKER INC21 citations92
US7215048B2May 8, 2007
Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion
BLACK & DECKER INC27 citations92
US7058291B2Jun 6, 2006
Brushless DC motor
BLACK & DECKER INC47 citations92
US6946758B2Sep 20, 2005
Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion
BLACK & DECKER INC30 citations92
US4905300AFeb 27, 1990
Motor control and power systems and methods of operation thereof
BLACK & DECKER INC25 citations92
US6975050B2Dec 13, 2005
Brushless DC motor
BLACK & DECKER INC45 citations91
US4682066AJul 21, 1987
Alignment system for permanent magnet motors
BLACK & DECKER INC41 citations91
US4853607AAug 1, 1989
Non-isolated thermally responsive battery charger
BLACK & DECKER INC29 citations88
US7170261B2Jan 30, 2007
Generator with dual cycloconverter for 120/240 VAC operation
BLACK & DECKER INC12 citations84
US9472989B2Oct 18, 2016
Method of manufacturing a power tool with molded armature
BLACK & DECKER INC5 citations83
US8997332B2Apr 7, 2015
Method of forming a power tool
BLACK & DECKER INC5 citations83
US7550213B2Jun 23, 2009
Tool system having rechargeable battery pack
BLACK & DECKER INC5 citations74
US7273676B2Sep 25, 2007
Battery pack for cordless device
BLACK & DECKER INC7 citations74
US6602634B1Aug 5, 2003
Battery pack for cordless device
BLACK & DECKER INC6 citations74
US8937412B2Jan 20, 2015
Method of forming a power tool
BLACK & DECKER INC3 citations73
US7685697B2Mar 30, 2010
Method of manufacturing an electric motor of a power tool and of manufacturing the power tool
BLACK & DECKER INC5 citations73
US8901787B2Dec 2, 2014
Method of forming a power tool
BLACK & DECKER INC2 citations62
DU HUNG T
2 patentsCONTAINER CORP
2 patentsBLACK & DECKER
1 patentBLACK & DECKER CO INC
1 patentATLAS DYNAMIC DEVICES LLC
1 patentNASA
1 patentShowing the top 50 of 54 patents by PatentIndex Score.