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

Patent Owner(s)

Patent Owner	Address
RESEARCH CORPORATION TECHNOLOGIES INC A CORP OF DE	6840 EAST BROADWAY BOULEVARD TUCSON AS 85710-2815

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• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Lewbart, Marvin L	Media, PA	8	184
Schwartz, Arthur G	Philadelphia, PA	19	277

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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 No: 5175154

5 .alpha.-pregnan-20-ones and 5-pregnen-20-ones and related compounds

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