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

Patent Owner(s)

Patent Owner	Address
THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIV	Not Provided

International Classification(s)

• C07H:SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTI....
• C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
• C07D:HETEROCYCLIC COMPOUNDS
• C40B:COMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL ....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chan, Tak-Hang	Toronto, CA	28	66
Damha, Masad J	Saint-Hubert, CA	16	160
Donga, Robert Alexander	Saint-Bruno, CA	5	13
Hassler, Matthew	Saskatoon, CA	26	306
Nandyala, Mallikarjuna Reddy	Montreal, CA	3	7

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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	Mar 30, 2025
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 30, 2029
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 30, 2033

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: 2021/0300,954

IONIC TAGS FOR SYNTHESIS OF OLIGORIBONUCLEOTIDES

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