Inventor
John G. Konopka
Inventor
Barrington, IL, US
Overview
Patents· 60 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating36%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications15%
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 systems12%
G01RMeasuring electric variables3%
H02HEmergency protective circuit arrangements3%
H02JElectric power networks3%
H03KPulse technique2%
A01GHorticulture1%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters1%
PatentTitleYear
8,917,084'High voltage sensing mechanism with integrated on-off switch'20147,468,586'Ballast with arc protection circuit'20087,288,901'Ballast with arc protection circuit'20077,218,063'Two light level ballast'20077,157,896'Device for locating and identifying circuit breakers'20077,084,579'Two light level ballast'20067,042,161'Ballast with arc protection circuit'20066,856,100'Ballast with inverter startup circuit'20056,768,274'Ballast with lamp-to-earth-ground fault protection circuit'20046,727,662'Dimming control system for electronic ballasts'20046,720,739'Ballast with protection circuit for quickly responding to electrical disturbances'20046,657,400'Ballast with protection circuit for preventing inverter startup during an output ground-fault condition'20036,552,498'Method and circuit for controlling current in a high pressure discharge lamp'20036,545,432'Ballast with fast-responding lamp-out detection circuit'20036,534,931'Dimming control system for electronic ballasts'20036,501,225'Ballast with efficient filament preheating and lamp fault protection'20026,194,845'Ballasts with tapped inductor arrangements for igniting and powering high intensity discharge lamps'20016,144,539'Arrangement for protecting low-voltage control circuitry from externally applied high voltages, and dimming ballast employing such an arrangement'20006,100,652'Ballast with starting circuit for high-intensity discharge lamps'20005,998,930'Electronic ballast with two-step boost converter and method'19995,994,847'Electronic ballast with lamp current valley-fill power factor correction'19995,982,109'Electronic ballast with fault-protected series resonant output circuit'19995,969,481'Power supply and electronic ballast with high efficiency voltage converter'19995,872,430'Single switch electronic ballast with low in-rush current'19995,869,937'High efficiency electronic ballast'19995,834,924'In-rush current reduction circuit for boost converters and electronic ballasts'19985,770,925'Electronic ballast with inverter protection and relamping circuits'19985,767,631'Power supply and electronic ballast with low-cost inverter bootstrap power source'19985,729,098'Power supply and electronic ballast with a novel boost converter control circuit'19985,694,006'Single switch ballast with integrated power factor correction'19975,691,691'Power-line communication system using pulse transmission on the AC line'19975,608,292'Single transistor ballast with filament preheating'19975,586,016'Circuit for quickly energizing electronic ballast'19965,574,336'Flourescent lamp circuit employing a reset transistor coupled to a start-up circuit that in turn controls a control circuit'19965,528,111'Ballast circuit for powering gas discharge lamp'19965,528,147'Apparatus for detecting gas discharge lamp faults'19965,475,285'Lamp circuit limited to a booster in which the power output decreases with increasing frequency'19955,453,665'Single transistor electronic ballast'19955,434,477'Circuit for powering a fluorescent lamp having a transistor common to both inverter and the boost converter and method for operating such a circuit'19955,399,944'Ballast circuit for driving gas discharge'19955,374,875'High-power factor circuit for energizing gas discharge lamps'19945,373,218'Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps'19945,194,781'Control circuit'19935,191,263'Ballast circuit utilizing a boost to heat lamp filaments and to strike the lamps'19935,148,087'Circuit for driving a gas discharge lamp load'19925,144,195'Circuit for driving at least one gas discharge lamp'19924,967,335'Saturable transformer regulator for flyback power supply'19904,937,731'Power supply with automatic input voltage doubling'19904,920,302'Fluorescent lamp power supply'19904,916,569'Short circuit protection for switch mode power supply'19904,906,938'Power circuit locater'19904,885,522'Constant current source and battery charger'19894,862,013'Constant current source and battery charger'19894,856,078'DC fan speed control'19894,829,259'Constant current source and battery charger'19894,805,083'Low cost automatic voltage doubler switch'19894,783,729'Automatic voltage doubler switch'19884,764,857'Power supply start-up circuit with high frequency transformer'19884,754,387'Start-up circuit for a switch mode power supply'19884,709,320'Low voltage shutdown circuit'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1990Patents assigned to ZENITH ELECTRONICS CORP (14)· patent assignee history
1987–1990Based in Ingleside, IL, US· patent location history
1988–2000Based in Barrington, IL, US· patent location history
1992–1999Patents assigned to MOTOROLA INC (20)· patent assignee history
1993–1996Patents assigned to MOTOROLA LIGHTING INC (7)· patent assignee history
2000–2008Patents assigned to OSRAM SYLVANIA INC (16)· patent assignee history
2000–2008Based in Deer Park, IL, US· patent location history
2014Patents assigned to CHOI ALEX K (1)· patent assignee history
2014Based in Spring Grove, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOTOROLA INC | 20 | 1992–1999 |
| OSRAM SYLVANIA INC | 16 | 2000–2008 |
| ZENITH ELECTRONICS CORP | 14 | 1987–1990 |
| MOTOROLA LIGHTING INC | 7 | 1993–1996 |
| CHOI ALEX K | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Barrington, Illinois, US | 38 | 1988–2000 |
| Deer Park, Illinois, US | 17 | 2000–2008 |
| Ingleside, Illinois, US | 4 | 1987–1990 |
| Spring Grove, Illinois, US | 1 | 2014 |