Lipase esterification processes for resolution of enantiomeric mixtures of intermediates in the preparation of taxanes

United States of America Patent

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Sep 22, 1998
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Aug 1, 1996
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Jan 15, 1992

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Abstract

Methods for the enzymatic resolution of mixtures of enantiomers, such as .beta.-lactam compounds, which may be employed as intermediates in the preparation of taxanes such as taxol, the latter useful in the pharmaceutical field.

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Patent Owner	Address
E R SQUIBB & SONS INC	PRINCETON NJ

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C12P:FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESI....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Partyka, Richard A	Neshanic, NJ	19	230
# of filed Patents : 19 Total Citations : 230
Patel, Ramesh N	Bridgewater, NJ	69	666
# of filed Patents : 69 Total Citations : 666
Szarka, Laszlo J	East Brunswick, NJ	33	160
# of filed Patents : 33 Total Citations : 160

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Lipase esterification processes for resolution of enantiomeric mixtures of intermediates in the preparation of taxanes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08691058

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Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
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Date	Code	Event	Description
May 18, 2015	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Apr 17, 2015	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Apr 17, 2015
Apr 17, 2015	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Nov 28, 2014	REMI	MAINTENANCE FEE REMINDER MAILED
Oct 18, 2010	FPAY	FEE PAYMENT	year of fee payment: 4
Nov 01, 2008	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Sep 13, 2008	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SEDNA PATENT SERVICES, LLC (F/K/A TVGATEWAY, LLC);REEL/FRAME:021570/0353 Owner name: COMCAST IP HOLDINGS I, LLC, DELAWARE Effective Date: Sep 13, 2008 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SEDNA PATENT SERVICES, LLC (F/K/A TVGATEWAY, LLC);REEL/FRAME:021570/0353 Owner name: COMCAST IP HOLDINGS I, LLC,DELAWARE Effective Date: Sep 13, 2008
Aug 21, 2007	CC	CERTIFICATE OF CORRECTION
Apr 17, 2007	I	Issuance
Sep 14, 2004	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DISCOVERY COMMUNICATIONS, INC.;REEL/FRAME:015239/0350 Owner name: SEDNA PATENT SERVICES, LLC, PENNSYLVANIA Effective Date: Sep 14, 2004 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DISCOVERY COMMUNICATIONS, INC.;REEL/FRAME:015239/0350 Owner name: SEDNA PATENT SERVICES, LLC,PENNSYLVANIA Effective Date: Sep 14, 2004
Nov 02, 2003	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Feb 03, 1997	F	Filing
Dec 09, 1992	PD	Priority Date

PATENT NO	5811292
SERIAL NO	08691058
DOCKET NO

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08691058

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