Inventor
J. Stephen Thorn
Inventor
Florissant, MO, US
Overview
Patents· 17 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 converters19%
D06FLaundering, drying, ironing, pressing or folding textile articles16%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications16%
G01KMeasuring temperature9%
H02HEmergency protective circuit arrangements9%
F04DNon-positive-displacement pumps6%
F24FAir-conditioning6%
G05DSystems for controlling or regulating non-electric variables6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants3%
PatentTitleYear
8,638,054'Sensorless lost/found rotor detection for permanent magnet motors'20148,432,112'Sensorless lost/found rotor detection for permanent magnet motors'20138,419,860'Device and method of sensing temperature of a rotating electromagnetic machine'20137,908,893'Device and method for sensing temperature of a rotating electromagnetic machine'20117,694,538'Device and method for sensing temperature of a rotating electromagnetic machine'20106,768,279'Reprogrammable motor drive and control therefore'20046,718,125'BLDC motor noise reduction using constant bus current control commutation'20046,442,979'Washing machine motor control device and method'20026,393,918'Method and apparatus for detecting washing machine tub imbalance'20026,381,791'Washing machine tub speed control method and apparatus'20026,282,965'Method and apparatus for detecting washing machine tub imbalance'20016,040,989'Device and method for generating three-phase sine waves using two pulse-width modulators'20005,736,823'Constant air flow control apparatus and method'19985,457,375'Sensorless commutation controller for a poly-phase dynamoelectric machine'19955,447,414'Constant air flow control apparatus and method'19954,986,092'Speed control for inverter driven washing machine'19914,743,815'Brushless permanent magnet motor system'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2014Patents assigned to EMERSON ELECTRIC CO (17)· patent assignee history
1988–2013Based in Florissant, MO, US· patent location history
1991–2014Based in St. Louis, MO, US· patent location history
2013Patents assigned to MARCINKIEWICZ JOSEPH G (2)· patent assignee history
2013Patents assigned to CLARK BRET S (1)· patent assignee history
2013Patents assigned to HENDERSON MICHAEL I (1)· patent assignee history
2013Patents assigned to LEVINE GREGORY M (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EMERSON ELECTRIC CO | 17 | 1988–2014 |
| MARCINKIEWICZ JOSEPH G | 2 | 2013 |
| CLARK BRET S | 1 | 2013 |
| HENDERSON MICHAEL I | 1 | 2013 |
| LEVINE GREGORY M | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Florissant, MO, US | 12 | 1988–2013 |
| St. Louis, MO, US | 5 | 1991–2014 |