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

Patent Owner(s)

Patent Owner	Address
FIRST SOLAR INC	TEMPE AZ 85288

International Classification(s)

• H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Le	Fremont, US	30	394
Grover, Sachit	Campbell, US	13	32
Kephart, Jason	San Jose, US	3	0
Kniajanski, Sergei	Perrysburg, US	29	146
Lee, Chungho	San Jose, US	39	359
Li, Xiaoping	San Jose, US	119	578
Liao, Feng	Perrysburg, US	45	231
Lu, Dingyuan	San Jose, US	12	30
Mallick, Rajni	Fremont, US	2	0
Wang, Wenming	Toledo, US	28	48
Xiong, Gang	Santa Clara, US	663	8444
Zhang, Wei	San Jose, US	2625	19909

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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	Oct 10, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Oct 10, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 10, 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: 2025/0120,219

Buffer Layers for Photovoltaic Devices with Group V Doping

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