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Legal status
Patent not validated
| (51) | INT.CL. | G01R 31/327 | (2006.01) |
| G01R 19/165 | (2006.01) | ||
| G01R 19/32 | (2006.01) | ||
| G01R 31/72 | (2020.01) | ||
| H01F 7/18 | (2006.01) |
| (11) | Number of the document | 3644076 |
| (13) | Kind of document | T |
| (96) | European patent application number | 18866820.6 |
| Date of filing the European patent application | 2018-10-08 | |
| (97) | Date of publication of the European application | 2020-04-29 |
| (45) | Date of publication and mention of the grant of the patent | 2021-08-25 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/KR2018/011845 |
| Date | 2018-10-08 |
| (87) | Number | WO 2019/074254 |
| Date | 2019-04-18 |
| (30) | Number | Date | Country code |
| 20170132631 | 2017-10-12 | KR |
| (72) |
KIM, Jinhwan , KR
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| (73) |
LG Chem, Ltd. ,
128 Yeoui-daero
Yeongdeungpo-gu, Seoul 07336,
KR
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| (54) | SYSTEM AND METHOD FOR DIAGNOSING CONTACTOR LIFETIME BY USING CONTACTOR COIL CURRENT |
| SYSTEM AND METHOD FOR DIAGNOSING CONTACTOR LIFETIME BY USING CONTACTOR COIL CURRENT |