Janczak; Jerzy
Patent Applications and Registrations
Patent applications and USPTO patent grants for Janczak; Jerzy.The latest application filed is for "emergency inverter and emergency lighting system".
- Janczak; Jerzy - Libertyville IL
- Janczak; Jerzy - Rosemont IL
- Janczak; Jerzy - Eindhoven NL
- Janczak; Jerzy - Woodhaven NY
- Janczak; Jerzy - Hagersten SE
- Janczak; Jerzy - S-126 54 Hagersten SE
| Patent | Date |
|---|---|
| Emergency inverter and emergency lighting system Grant 10,432,021 - Shen , et al. O | 2019-10-01 |
| Emergency Inverter And Emergency Lighting System App 20170033598 - SHEN; XI QUAN ; et al. | 2017-02-02 |
| Electronic ballast with dimming circuit Grant 9,035,571 - Erhardt , et al. May 19, 2 | 2015-05-19 |
| Electronic Ballast With Dimming Circuit App 20120200232 - Erhardt; Robert A. ; et al. | 2012-08-09 |
| Hid Lamp Ignitor App 20120025728 - Tumula; Naveen ; et al. | 2012-02-02 |
| Apparatus For Driving A Gas Discharge Lamp App 20100026210 - Keijser; Robertus Antonius Johannes ; et al. | 2010-02-04 |
| High-Pressure Sodium Lamp App 20070228993 - Stuer; Cindy Blondine Andre ; et al. | 2007-10-04 |
| Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit Grant 7,256,548 - Janczak , et al. August 14, 2 | 2007-08-14 |
| Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit App 20050104538 - Janczak, Jerzy ; et al. | 2005-05-19 |
| High frequency electronic ballast Grant 6,696,800 - Kramer , et al. February 24, 2 | 2004-02-24 |
| High frequency electronic ballast Grant 6,686,703 - Erhardt , et al. February 3, 2 | 2004-02-03 |
| High frequency electronic ballast App 20030127993 - Erhardt, Robert A. ; et al. | 2003-07-10 |
| High frequency electronic ballast App 20030127995 - Kramer, Jerry Martin ; et al. | 2003-07-10 |
| Ballast scheme for operating multiple lamps Grant 6,232,726 - Janczak May 15, 2 | 2001-05-15 |
| Power-driven work tool Grant 6,182,367 - Janczak February 6, 2 | 2001-02-06 |
| Triac dimmable compact fluorescent lamp with dimming interface Grant 6,175,195 - Janczak , et al. January 16, 2 | 2001-01-16 |
| Soft start scheme for resonant converters having variable frequency control Grant 6,154,375 - Majid , et al. November 28, 2 | 2000-11-28 |
| Triac dimmable electronic ballast with single stage feedback power factor inverter Grant 6,144,169 - Janczak November 7, 2 | 2000-11-07 |
| Resonant mode power supply having over-power and over-current protection Grant 6,087,782 - Majid , et al. July 11, 2 | 2000-07-11 |
| Dimmable compact fluorescent lamp Grant 6,043,611 - Gradzki , et al. March 28, 2 | 2000-03-28 |
| Resonant mode power supply having an efficient low power stand-by mode Grant 6,018,467 - Majid , et al. January 25, 2 | 2000-01-25 |
| Triac dimmable compact fluorescent lamp with low power factor Grant 6,011,357 - Gradzki , et al. January 4, 2 | 2000-01-04 |
| Triac dimmable, single stage compact flourescent lamp Grant 5,994,848 - Janczak November 30, 1 | 1999-11-30 |
| Tree-pruning and clearing apparatus Grant 4,341,017 - Janczak July 27, 1 | 1982-07-27 |
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