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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
NR ELECTRIC CO LTD	211102 NO 69 SU YUAN AVENUE JIANGNING DISTRICT JIANGSU NANJING NANJING CITY JIANGSU PROVINCE 211102
NR ENGINEERING CO LTD	211102 NO 69 SU YUAN AVENUE JIANGNING DISTRICT JIANGSU NANJING NANJING CITY JIANGSU PROVINCE 211102

International Classification(s)

• H02J:CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR D....
• H01H:ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PR....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cao, Dongming	Nanjing, CN	23	75
Dong, Yunlong	Nanjing, CN	31	62
Li, Haiying	Nanjing, CN	49	142
Tian, Jie	Nanjing, CN	85	177

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 23, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 23, 2029

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
January 23, 2018	US,9876393,B2   US9876393B2	GRANTED PATENT AS SECOND PUBLICATION
August 04, 2016	US,20160226306,A1   US20160226306A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9876393

Direct current (DC) voltage control method and apparatus

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