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

Patent Owner(s)

Patent Owner	Address
CATERPILLAR INC	100 NE ADAMS STREET AH9510 PEORIA IL 61629-9510

International Classification(s)

• F01L:CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINE....
• F02D:CONTROLLING COMBUSTION ENGINES

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chang, David Yu Zhang	Edwards, US	6	20
Fiveland, Scott	Washington, US	8	108
Montgomery, David Todd	Edelstein, US	18	26
Shafer, Scott F	Morton, US	70	850

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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	Jul 31, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 31, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 31, 2034

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
January 31, 2023	US,11566545,B2   US11566545B2	GRANTED PATENT AS SECOND PUBLICATION
November 05, 2020	US,20200347754,A1   US20200347754A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11566545

Cam actuated gas admission valve with electro-hydraulic trim control

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