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

Patent Owner(s)

Patent Owner	Address
SIEMENS SCHWEIZ AG	FREILAGERSTRASSE 40 ZUERICH 8047

International Classification(s)

• G08B:SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; A....
• H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ayzenshtat, Leonid	Clarks Summit, US	17	126
Schermann, Harald	Unterschweinbach, DE	7	26

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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,9875646,B2   US9875646B2	GRANTED PATENT AS SECOND PUBLICATION
February 02, 2017	US,20170032662,A1   US20170032662A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9875646

Apparatus and method for supervising audio system during battery mode

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