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Country	kind	publication No.	Filing Date	Type	Sub-Type
EP	B1	EP4334756	May 09, 2022	Patent	Grant
Type : Patent Sub-Type : Grant
Patent		OPTICAL FIBER HYDROPHONE		Oct 02, 2024
WO	A1	WO2022240287	May 09, 2022	Patent	Application
Type : Patent Sub-Type : Application
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT		OPTICAL FIBER-BASED HYDROPHONE		Nov 17, 2022

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

Patent Owner(s)

Patent Owner	Address
OPTICS11 B V	HETTENHEUVELWEG 37-39 1101 BM AMSTERDAM NETHERLANDS

International Classification(s)

• G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
• H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....
• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
• G01D:MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VAR....
• G01V:GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING ....

• 2022 Application Filing Year
• G01H Class
• 258 Applications Filed
• 101 Patents Issued To-Date
• 39.15 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
GRUCA, Grzegorz	Amsterdam, NL	5	1
# of filed Patents : 5 Total Citations : 1
GUNDA, Arun	Amsterdam, NL	10	76
# of filed Patents : 10 Total Citations : 76
KYSELICA, Rudolf	Amsterdam, NL	1	0
# of filed Patents : 1 Total Citations : 0
POLYVAS, Peter	Amsterdam, NL	1	0
# of filed Patents : 1 Total Citations : 0
RIJNVELD, Niek	Amsterdam, NL	9	18
# of filed Patents : 9 Total Citations : 18

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Feb 29, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Feb 29, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 29, 2036

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

Full Text

US Patent Application No: 2024/0288,302

OPTICAL FIBER-BASED HYDROPHONE

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Abstract

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A hydrophone has a mandrel with a shell and a cylindrical cavity inwardly adjacent to the shell. A passage provides fluid communication between the cylindrical cavity and an exterior environment surrounding the mandrel. The hydrophone further has an optical fiber having an optical sensing section that is at least partially wound on the mandrel. The optical sensing section has an optical characteristic that varies as a function of a radial dimension of the mandrel. The mandrel has a core of solid material having a bulk modulus lower than 0.1 GPa. The cylindrical cavity is between the core and the shell.

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Description

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Claims

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