Inventor
Chieh-Kai Chang
Inventor
Grosse Pointe Woods, MI, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
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 systems27%
G01RMeasuring electric variables13%
H02JElectric power networks13%
B60LPropulsion of electrically-propelled vehicles7%
H02HEmergency protective circuit arrangements7%
H03HImpedance networks, e.g. resonant circuits7%
H03KPulse technique7%
H03MCoding7%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications7%
Y02TClimate change mitigation technologies related to transportation7%
PatentTitleYear
10,564,226Diagnostic system for a DC-DC voltage converter202010,511,161Diagnostic system for a DC-DC voltage converter201910,298,058Wireless power transfer201910,211,736Power supply system and detection system for determining an unbalanced current condition and an overcurrent condition in a DC-DC voltage converter201910,128,751Control system for controlling a DC-DC voltage converter circuit2018Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2018–2020Patents assigned to LG CHEMICAL LTD (4)· patent assignee history
2018–2020Based in Grosse Pointe Woods, MI, US· patent location history
2019Patents assigned to UNIV COLORADO REGENTS (1)· patent assignee history
2019Based in Madison Heights, MI, US· patent location history
2019Based in Boulder, CO, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LG CHEMICAL LTD | 4 | 2018–2020 |
| UNIV COLORADO REGENTS | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Grosse Pointe Woods, MI, US | 2 | 2018–2020 |
| Madison Heights, MI, US | 2 | 2019 |
| Boulder, CO, US | 1 | 2019 |