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

Patent Owner(s)

Patent Owner	Address
PREVACUS INC	TALLAHASSEE FL 32308

International Classification(s)

• C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
• C07D:HETEROCYCLIC COMPOUNDS
• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• C07J:STEROIDS

• 2014 Application Filing Year
• C07F Class
• 1196 Applications Filed
• 979 Patents Issued To-Date
• 81.86 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cran, John W	Tallahassee, US	5	7
# of filed Patents : 5 Total Citations : 7
Han, Yinglin	Beijing, CN	4	4
# of filed Patents : 4 Total Citations : 4
Zhang, Faliang	Beijing, CN	27	115
# of filed Patents : 27 Total Citations : 115

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Patent Citation Ranking

• 0 Citation Count
• C07F Class

• 0 % this patent is cited more than
• 11 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 18, 2026

Fee	Large entity fee	small entity fee	micro entity fee
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: 2014/0275,572

SYNTHESIS OF ENT-PROGESTERONE AND INTERMEDIATES THEREOF

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Abstract

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The present invention relates to the synthesis of ent-progesterone and intermediates thereof.

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Description

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Claims

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