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

Patent Owner(s)

Patent Owner	Address
FUJISAWA PHARMACEUTICAL CO LTD	OSAKA JAPAN OSAKA-SHI OSAKA

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C07D:HETEROCYCLIC COMPOUNDS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kawabata, Kohji	Osaka, JP	48	703
# of filed Patents : 48 Total Citations : 703
Miyai, Kenzi	Hyogo, JP	12	235
# of filed Patents : 12 Total Citations : 235
Sakane, Kazuo	Hyogo, JP	54	909
# of filed Patents : 54 Total Citations : 909
Takaya, Takao	Hyogo, JP	146	1712
# of filed Patents : 146 Total Citations : 1712

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Patent Citation Ranking

• 14 Citation Count
• A61K Class

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

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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: 5162520

Intermediates for cephem compounds

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Abstract

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The invention relates to intermediate compounds of the formula: ##STR1## wherein R.sup.3 is a lower alkyl, hydroxy(lower)alkyl or a protected hydroxy(lower)alkyl, R.sup.4 is amino or a protected amino group, and R.sup.5 is hydrogen or lower alkyl, or a salt thereof, useful in the preparation of compounds of antimicrobial activity.

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Description

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Claims

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