Pfitzer; Hans-Erik

Patent Applications and Registrations

Patent applications and USPTO patent grants for Pfitzer; Hans-Erik.The latest application filed is for "static transfer switch system with real time flux control".

Company Profile

0.13.13

Pfitzer; Hans-Erik - Chesterfield VA
Pfitzer; Hans-Erik - Wake Forest NC

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Static transfer switch system with real time flux control Grant 11,050,250 - Pfitzer , et al. June 29, 2	2021-06-29
Adaptive fault clearing based on power transistor temperature Grant 9,705,310 - Pfitzer , et al. July 11, 2	2017-07-11
Static Transfer Switch System With Real Time Flux Control App 20170126006 - Pfitzer; Hans-Erik ; et al.	2017-05-04
Distributed energy system disconnect switch with mechanical isolation Grant 9,190,871 - Pfitzer November 17, 2	2015-11-17
Adaptive Fault Clearing Based On Power Transistor Temperature App 20150146327 - Pfitzer; Hans-Erik ; et al.	2015-05-28
Surge protective device with contoller Grant 8,929,042 - Pfitzer , et al. January 6, 2	2015-01-06
Disconnect switch for distributed energy system Grant 8,716,885 - Pfitzer , et al. May 6, 2	2014-05-06
Distributed Energy System Disconnect Switch With Mechanical Isolation App 20130099567 - Pfitzer; Hans-Erik	2013-04-25
Disconnect Switch For Distributed Energy System App 20130099566 - Pfitzer; Hans-Erik ; et al.	2013-04-25
Surge Protective Device With Contoller App 20120250205 - Pfitzer; Hans-Erik ; et al.	2012-10-04
Self-testing power supply apparatus, methods and computer program products Grant 7,948,778 - Pfitzer , et al. May 24, 2	2011-05-24
Power converter apparatus and methods using neutral coupling circuits with interleaved operation Grant 7,800,924 - Oughton, Jr. , et al. September 21, 2	2010-09-21
Power converter apparatus and methods using a phase reference derived from a DC bus voltage Grant 7,561,451 - Tracy , et al. July 14, 2	2009-07-14
Self-Testing Power Supply Apparatus, Methods and Computer Program Products App 20080265681 - Pfitzer; Hans-Erik ; et al.	2008-10-30
Power Converter Apparatus and Methods Using Neutral Coupling Circuits with Interleaved Operation App 20080239775 - Oughton; George W. ; et al.	2008-10-02
AC power supply apparatus, methods and computer program products using PWM synchronization Grant 7,405,494 - Tassitino, Jr. , et al. July 29, 2	2008-07-29
Power conversion apparatus and methods using DC bus shifting Grant 7,088,601 - Tracy , et al. August 8, 2	2006-08-08
AC power supply apparatus, methods and computer program products using PWM synchronization App 20060006741 - Tassitino; Frederick JR. ; et al.	2006-01-12
Self-testing power supply apparatus, methods and computer program products App 20050286274 - Pfitzer, Hans-Erik ; et al.	2005-12-29
Power converter apparatus and methods using a phase reference derived from a DC bus voltage App 20050243488 - Tracy, John G. ; et al.	2005-11-03
Power conversion apparatus and methods using DC bus shifting App 20050162137 - Tracy, John G. ; et al.	2005-07-28

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