Karraker; Douglas
Patent Applications and Registrations
Patent applications and USPTO patent grants for Karraker; Douglas.The latest application filed is for "dc bus voltage measurement circuit".
- Karraker; Douglas - New Berlin WI
- Karraker; Douglas - Muskego WI
| Patent | Date |
|---|---|
| DC bus voltage measurement circuit Grant 9,419,529 - Karraker , et al. August 16, 2 | 2016-08-16 |
| Dc Bus Voltage Measurement Circuit App 20150253359 - Karraker; Douglas ; et al. | 2015-09-10 |
| AC motor bypass with fault annunciation, serial communication and fault tolerant coil control Grant 7,948,721 - Brunner , et al. May 24, 2 | 2011-05-24 |
| AC Motor Bypass With Fault Annunication, Serial Communication And Fault Tolerant Coil Control App 20090167229 - Brunner; Jeffrey A. ; et al. | 2009-07-02 |
| Method and apparatus for detecting faults in AC to AC, or DC to AC power conversion equipments when the equipment is in a high impedance mode Grant 7,154,277 - Vallinmaki , et al. December 26, 2 | 2006-12-26 |
| Method and apparatus for detecting faults in AC to AC, or DC to AC power conversion equipments when the equipment is in a high impedance mode App 20050047035 - Vallinmaki, Alpo K. ; et al. | 2005-03-03 |
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