Inventor
Hung T. Du
Inventor
Reisterstown, MD, US
Overview
Patents· 47 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines42%
Y10TTechnical subjects covered by former us classification31%
H01RElectrically-conductive connections16%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters4%
B25FCombination or multi-purpose tools not otherwise provided for3%
A01GHorticulture1%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding1%
B25CHand-held nailing or stapling tools1%
C04BLime, magnesia1%
F04BPositive-displacement machines for liquids1%
PatentTitleYear
9,472,989'Method of manufacturing a power tool with molded armature'20168,997,332'Method of forming a power tool'20158,937,412'Method of forming a power tool'20158,901,787'Method of forming a power tool'20148,850,690'Method of forming a power tool'20148,823,234'Motor with permanent magnets having essentially the same inner and outer radius; and method of manufacturing a motor stator housing with permanent magnets'20148,657,030'Cordless power tool having multi-speed transmission and constant speed in light torque range'20148,558,420'Power tool with motor having a multi-piece stator'20138,324,764'Method for forming a power tool'20128,207,647'Power tools with motor having a multi-piece stator'20128,203,239'Method of forming a power tool'20128,022,654'Soft start for electric motor of a power tool'20117,893,583'Power tools with motor having a multi-piece stator'20117,814,641'Method of forming a power tool'20107,687,964'Electric motor having a field assembly with slot insulation'20107,685,697'Method of manufacturing an electric motor of a power tool and of manufacturing the power tool'20107,602,137'Electronically commutated motor and control system'20097,528,520'Electric motor having a field assembly with slot insulation'20097,494,035'Pneumatic compressor'20097,464,455'Method for forming an armature for an electric motor'20087,233,091'Electric motor with field assemblies having core pieces with mating features'20077,215,048'Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion'20077,211,920'Field assemblies having pole pieces with axial lengths less than an axial length of a back iron portion and methods of making same'20077,205,696'Field assemblies having pole pieces with ends that decrease in width, and methods of making same'20077,181,830'Process of manufacturing a flux ring for an electric motor'20077,146,706'Method of making an electric motor'20067,119,469'Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing'20067,096,566'Method for making an encapsulated coil structure'20067,091,642'Field assembly for a motor and method of making same'20067,088,024'Field assembly for a motor and method of making same'20067,078,843'Field assemblies and methods of making same'20067,038,343'Field assembly for a motor and method of making same'20067,023,159'Method and device for braking a motor'20067,013,552'Method for forming an armature for an electric motor for a portable power tool'20066,983,529'Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing'20066,946,758'Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion'20056,903,475'Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing'20056,838,797'Flux ring for an electric motor'20056,781,267'Motor for a power tool'20046,769,168'Flux ring for an electric motor'20046,744,170'Brush assembly'20046,735,846'Method for forming an electric motor having armature coated with a thermally conductive plastic'20046,522,042'Anchoring system for injection molded magnets on a flux ring or motor housing'20036,462,448'Flux ring for an electric motor'20026,172,437'Hybrid AC/DC motor'20016,081,060'Motor assembly for power tools'20005,818,142'Motor pack armature support with brush holder assembly'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2016Patents assigned to BLACK & DECKER INC (47)· patent assignee history
1998–2009Based in Baltimore, MD, US· patent location history
2000–2016Based in Reisterstown, MD, US· patent location history
2004–2009Based in Reistertown, MD, US· patent location history
2012–2014Patents assigned to DU HUNG T (6)· patent assignee history
2012–2014Patents assigned to ORTT EARL M (3)· patent assignee history
2012–2013Patents assigned to HOGAN KEVIN M (2)· patent assignee history
2012–2013Patents assigned to MANNARINO FRANK A (2)· patent assignee history
2014Based in Towson, MD, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BLACK & DECKER INC | 47 | 1998–2016 |
| DU HUNG Tself | 6 | 2012–2014 |
| ORTT EARL M | 3 | 2012–2014 |
| HOGAN KEVIN M | 2 | 2012–2013 |
| MANNARINO FRANK A | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Reisterstown, Maryland, US | 42 | 2000–2016 |
| Baltimore, Maryland, US | 2 | 1998–2009 |
| Reistertown, Maryland, US | 2 | 2004–2009 |
| Towson, Maryland, US | 1 | 2014 |