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

Patent Owner(s)

Patent Owner	Address
VERSALIS S P A	PIAZZA BOLDRINI 1 SAN DONATO MILANESE 1-20097

International Classification(s)

• C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
FORNI, Alessandra	Melzo (mi), IT	3	1
LEONE, Giuseppe	Milano, IT	28	32
MASI, Francesco	S. Angelo Lodigiano (lo), IT	75	239
RICCI, Giovanni	Parma, IT	30	30
SOMMAZZI, Anna	Santa Margherita Ligure (ge), IT	58	129

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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 9, 2025
7.5 Year Payment	$3600.00	$1800.00	$900.00	Dec 9, 2029
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 9, 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: 2022/0177,500

PHOSPHINIC VANADIUM COMPLEX, CATALYTIC SYSTEM COMPRISING SAID PHOSPHINIC VANADIUM COMPLEX AND PROCESS FOR THE (CO) POLYMERIZATION OF CONJUGATED DIENES

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