Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HD

Hung T. Du — 47 Patents

BDBlack & Decker: 47 patents #41 of 2,138Top 2%
Reisterstown, MD: #1 of 190 inventorsTop 1%
Maryland: #275 of 35,612 inventorsTop 1%
Overall (All Time): #61,041 of 4,157,543Top 2%
47 Patents All Time

Issued Patents All Time

Showing 26–47 of 47 patents

Patent #TitleCo-InventorsDate
7146706 Method of making an electric motor Brandon L. Verbrugge, Earl M. Ortt, Michael J. Agnes, Michael Zemlok, Robert G. Kusmierski +1 more 2006-12-12
7119469 Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing Earl M. Ortt, Michael J. Agnes 2006-10-10
7096566 Method for making an encapsulated coil structure Brandon L. Verbrugge, Joshua F. West, Michael R. Sell, Richard T. Walter, David J. Smith +3 more 2006-08-29
7091642 Field assembly for a motor and method of making same Michael J. Agnes, Allyn Boyce, Earl M. Ortt, Brandon L. Verbrugge, Richard Walter +1 more 2006-08-15
7088024 Field assembly for a motor and method of making same Michael J. Agnes, Allyn Boyce, Earl M. Ortt, Brandon L. Verbrugge, Richard Walter +2 more 2006-08-08
7078843 Field assemblies and methods of making same Brandon L. Verbrugge, Earl M. Ortt, Michael J. Agnes, John C. Stone, Michael A. Zemlock +2 more 2006-07-18
7038343 Field assembly for a motor and method of making same Michael J. Agnes, Allyn Boyce, Earl M. Ortt, Brandon L. Verbrugge, Richard T. Walter +2 more 2006-05-02
7023159 Method and device for braking a motor Bhanuprasad V. Gorti 2006-04-04
7013552 Method for forming an armature for an electric motor for a portable power tool 2006-03-21
6983529 Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing Earl M. Ortt, Michael J. Agnes 2006-01-10
6946758 Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion Brandon L. Verbrugge, Joshua F. West, Michael R. Sell, Richard T. Walter, Earl M. Ortt +1 more 2005-09-20
6903475 Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing Earl M. Ortt, Michael J. Agnes 2005-06-07
6838797 Flux ring for an electric motor 2005-01-04
6781267 Motor for a power tool Earl M. Ortt, Brandon L. Verbrugge, Morris R. Davies 2004-08-24
6769168 Flux ring for an electric motor 2004-08-03
6744170 Brush assembly Todd A. Hagan 2004-06-01
6735846 Method for forming an electric motor having armature coated with a thermally conductive plastic 2004-05-18
6522042 Anchoring system for injection molded magnets on a flux ring or motor housing Earl M. Ortt, Robert J. Marcinkowski, Brandon L. Verbrugge, Michael Kunz 2003-02-18
6462448 Flux ring for an electric motor 2002-10-08
6172437 Hybrid AC/DC motor 2001-01-09
6081060 Motor assembly for power tools 2000-06-27
5818142 Motor pack armature support with brush holder assembly Calvin M. Edleblute, Robert A. Meloni, Roger Q. Smith, Deborah Lynn Messmer 1998-10-06