Inventor
Thomas A. Lipo
Inventor
Middleton, WI, US
Overview
Patents· 49 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters36%
H02KDynamo-electric machines28%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems14%
B60LPropulsion of electrically-propelled vehicles4%
Y02TClimate change mitigation technologies related to transportation4%
H03KPulse technique3%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
F03DWind motors1%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g1%
PatentTitleYear
11,128,246Driving system and method for a wound rotor synchronous generator202110,886,801Vernier machine with shaped permanent magnet groups202110,784,727Salient pole, wound field, synchronous machine with enhanced saliency202010,594,179Alternating flux barrier air gap in a spoke type machine202010,003,228Interior permanent magnet machine with axially varying permanent magnet size20189,595,858'Double air gap, spoke type vernier machine'20179,379,657'Unity power factor induction machine'20169,093,942'Assymetrical power inverter'20158,648,562'Single power supply dual converter open-winding machine drive'20148,450,963'Brushless synchronous machine utilizing third harmonic excitation'20137,608,965'Field controlled axial flux permanent magnet electrical machine'20097,006,366'Boost rectifier with half-power rated semiconductor devices'20066,995,992'Dual bridge matrix converter'20066,924,574'Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine'20056,710,495'Multi-phase electric motor with third harmonic current injection'20046,570,778'Adjustable speed drive for single-phase induction motors'20036,242,884'Dual stator winding induction machine drive'20016,208,185'High performance active gate drive for IGBTs'20016,097,582'Short circuit protection of IGBTs and other power switching devices'20006,031,738'DC bus voltage balancing and control in multilevel inverters'20006,005,788'Hybrid topology for multilevel power conversion'19995,949,664'Current stiff converters with resonant snubbers'19995,870,292'Series resonant converter for switched reluctance motor drive'19995,852,558'Method and apparatus for reducing common mode voltage in multi-phase power converters'19985,841,644'Passively clamped quasi-resonant DC link converters'19985,825,112'Doubly salient motor with stationary permanent magnets'19985,825,113'Doubly salient permanent magnet machine with field weakening (or boosting) capability'19985,672,925'Doubly salient variable reluctance machine with stationary permanent magnets or auxiliary field windings'19975,661,390'Inverter-fed motor drive with EMI suppression'19975,650,707'Inverter-controlled induction machine with an extended speed range'19975,646,498'Conducted emission radiation suppression in inverter drives'19975,510,689'Air gap flux measurement using stator third harmonic voltage'19965,459,385'Variable reluctance drive system'19955,455,473'Field weakening for a doubly salient motor with stator permanent magnets'19955,448,149'Indirect rotor position sensor for a sinusoidal synchronous reluctance machine'19955,376,851'Variable reluctance motor with full and short pitch windings'19945,334,923'Motor torque control method and apparatus'19945,304,882'Variable reluctance motors with permanent magnet excitation'19945,272,429'Air gap flux measurement using stator third harmonic voltage and uses'19935,010,267'Variable speed machine with high power density'19914,942,511'Static power conversion apparatus using a high frequency series resonant DC link'19904,724,373'Method and apparatus for flux and torque sensing in electrical machines'19884,573,003'AC Machine optimized for converter operation'19864,455,522'Current source inverter bed induction motor drive'19844,137,489'Feedback control for reduction of cogging torque in controlled current AC motor drives'19794,112,339'Measurement of pulsating torque in a current source inverter motor drive'19784,088,934'Means for stabilizing an a-c electric motor drive system'19784,019,105'Controlled current induction motor drive'19774,001,660'Regulating the torque of an induction motor'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1984Patents assigned to GEN ELECTRIC (6)· patent assignee history
1977–1979Based in Schenectady, NY, US· patent location history
1984–2021Based in Madison, WI, US· patent location history
1986–2021Patents assigned to WISCONSIN ALUMNI RES FOUND (26)· patent assignee history
1994–1999Patents assigned to ELECTRIC POWER RES INST (11)· patent assignee history
1995–2021Based in Middleton, WI, US· patent location history
1997Patents assigned to EATON CORP (1)· patent assignee history
2013–2014Patents assigned to LIPO THOMAS A (2)· patent assignee history
2016Based in Middletown, WI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WISCONSIN ALUMNI RES FOUND | 26 | 1986–2021 |
| ELECTRIC POWER RES INST | 11 | 1994–1999 |
| GEN ELECTRIC | 6 | 1977–1984 |
| LIPO THOMAS Aself | 2 | 2013–2014 |
| EATON CORP | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Middleton, WI, US | 29 | 1995–2021 |
| Madison, WI, US | 14 | 1984–2021 |
| Schenectady, New York, US | 5 | 1977–1979 |
| Middletown, WI, US | 1 | 2016 |