Method for detecting open phase of startup/standby transformer based on optical CT
US-11422204-B2 · Aug 23, 2022 · US
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Guo Zigang patents
Guo Zigang is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Guo Zigang |
| Total patents | 4 |
| First publication | May 31, 2018 |
| Latest publication | Aug 23, 2022 |
Notable patents
Publications ranked by popularity score, then publication date.
Method for detecting open phase of startup/standby transformer based on optical ct
US-2020363479-A1 · Nov 19, 2020 · US
Method and apparatus for identifying open phase of circuit breaker on basis of voltage
US-10267859-B2 · Apr 23, 2019 · US
Method and apparatus for identifying open phase of circuit breaker on basis of voltage
US-2018149699-A1 · May 31, 2018 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Nr Electric Co Ltd | 4 |
| Nr Engineering Co Ltd | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G01R31/3275 | 2 |
| H02H1/0092 | 2 |
| G01R19/10 | 2 |
| H02H3/265 | 2 |
| H02H3/04 | 2 |