Inventor
Qixue Zhang
Inventor
Jiangsu, CN
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Hprimary
H02HEmergency protective circuit arrangements43%
G01RMeasuring electric variables14%
H02JElectric power networks14%
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 systems14%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution14%
PatentTitleYear
10,267,859Method and apparatus for identifying open phase of circuit breaker on basis of voltage201910,128,650Relay protection method and apparatus against LC parallel circuit detuning faults20189,584,007'Current source converter differential protection method and relay protection device'2017Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2017–2019Patents assigned to NR ELECTRIC CO LTD (3)· patent assignee history
2017–2019Patents assigned to NR ENGINEERING CO LTD (2)· patent assignee history
2017–2019Based in Jiangsu, CN· patent location history
2018Patents assigned to NR ELECTRIC ENG CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NR ELECTRIC CO LTD | 3 | 2017–2019 |
| NR ENGINEERING CO LTD | 2 | 2017–2019 |
| NR ELECTRIC ENG CO LTD | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Jiangsu, CN | 3 | 2017–2019 |