Inventor
Hans-Erik Pfitzer
Inventor
Wake Forest, NC, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Jprimary
H02JElectric power networks29%
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 systems17%
H02HEmergency protective circuit arrangements8%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids8%
G01RMeasuring electric variables4%
H01HElectric switches4%
H03KPulse technique4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
PatentTitleYear
11,050,250Static transfer switch system with real time flux control20219,705,310'Adaptive fault clearing based on power transistor temperature'20179,190,871'Distributed energy system disconnect switch with mechanical isolation'20158,929,042'Surge protective device with contoller'20158,716,885'Disconnect switch for distributed energy system'20147,948,778'Self-testing power supply apparatus, methods and computer program products'20117,800,924'Power converter apparatus and methods using neutral coupling circuits with interleaved operation'20107,561,451'Power converter apparatus and methods using a phase reference derived from a DC bus voltage'20097,405,494'AC power supply apparatus, methods and computer program products using PWM synchronization'20087,247,955'PWM power supplies using controlled feedback timing and methods of operating same'20077,088,601'Power conversion apparatus and methods using DC bus shifting'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2007Patents assigned to EATON POWER QUALITY CORP (2)· patent assignee history
2006–2011Based in Wake Forest, NC, US· patent location history
2008–2011Patents assigned to EATON CORP (4)· patent assignee history
2014–2015Patents assigned to PFITZER HANS-ERIK (3)· patent assignee history
2014–2015Patents assigned to THOMAS & BETTS INT (2)· patent assignee history
2014–2021Based in Chesterfield, VA, US· patent location history
2015–2017Patents assigned to THOMAS & BETTS INT LLC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EATON CORP | 4 | 2008–2011 |
| PFITZER HANS-ERIKself | 3 | 2014–2015 |
| EATON POWER QUALITY CORP | 2 | 2006–2007 |
| THOMAS & BETTS INT | 2 | 2014–2015 |
| THOMAS & BETTS INT LLC | 2 | 2015–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wake Forest, NC, US | 6 | 2006–2011 |
| Chesterfield, Virginia, US | 5 | 2014–2021 |