Inventor
Karmen D. Cox
Inventor
St. Peters, MO, US
Overview
Patents· 14 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 converters15%
H02KDynamo-electric machines11%
A47LDomestic washing or cleaning7%
F24FAir-conditioning7%
G05BControl or regulating systems in general7%
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 systems7%
Y10TTechnical subjects covered by former us classification7%
B01DSeparation4%
B23DPlaning4%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling4%
PatentTitleYear
9,503,001'Remotely-programmable control circuit for single-phase motor'20167,486,041'Electric motor with adjustable timing'20096,232,693'Switched reluctance motor having stator inserts for noise reduction, magnet positioning, and coil retention'20016,011,331'Electric motor having an improved airflow cooling system'20006,008,608'User operated switch and speed control device for a wet/dry vacuum'19995,703,456'Power converter and control system for a motor using an inductive load and method of doing the same'19975,668,535'Filter condition sensor and indicator'19975,517,746'Variable speed direct drive drill press/router'19965,014,908'Control circuit using a sulphonated fluorocarbon humidity sensor'19914,694,275'Digital capacitance incremental encoder'19874,641,557'Electronically controlled power saw'19874,429,205'Induction heating apparatus'19844,068,179'Electronic cycle-select switching system'19784,047,082'Variable threshold starting circuit for induction motor'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1978Patents assigned to DESIGN & MFG CORP (2)· patent assignee history
1977–1984Based in Lafayette, IN, US· patent location history
1984Patents assigned to ROPER CORP (1)· patent assignee history
1987–2001Patents assigned to EMERSON ELECTRIC CO (9)· patent assignee history
1987–1996Based in St. Charles, MO, US· patent location history
1991–2016Based in St. Peters, MO, US· patent location history
2009–2016Patents assigned to MCMILLAN ELECTRIC COMPANY (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EMERSON ELECTRIC CO | 9 | 1987–2001 |
| DESIGN & MFG CORP | 2 | 1977–1978 |
| MCMILLAN ELECTRIC COMPANY | 2 | 2009–2016 |
| ROPER CORP | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Peters, MO, US | 8 | 1991–2016 |
| St. Charles, MO, US | 3 | 1987–1996 |
| Lafayette, IN, US | 3 | 1977–1984 |