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

Patent Owner(s)

Patent Owner	Address
CHEVRON U S A INC	6001 BOLLINGER CANYON ROAD SAN RAMON CA 87545-0806

International Classification(s)

• H01P:WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF ....
• H01Q:AERIALS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Dieckmann, Gunther Hans	Walnut Creek, US	5	77
Dunlavey, James Thomas	Bakersfield, US	3	33
Okoniewski, Michal Mieczyslaw	Calgary, CA	3	18
Pasalic, Damir	Calgary, CA	13	78

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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	Dec 23, 2023
7.5 Year Payment	$3600.00	$1800.00	$900.00	Dec 23, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 23, 2031

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 23, 2020	US,10693237,B2   US10693237B2	GRANTED PATENT AS SECOND PUBLICATION
August 03, 2017	US,20170222297,A1   US20170222297A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2017/0222,297

SUBSURFACE ANTENNA FOR RADIO FREQUENCY HEATING

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