IP Library › Granted Patent US 7,750,148
Granted Patent B2
US 7,750,148 · App. 10/580,561 · Granted Jul 6, 2010

Intermediate compound for the production of β-lactamase-resistant cephalosporin ester compounds and salts thereof

Assignee: Zhejiang Yongning Pharmaceutical Factory
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Quick Facts
Patent No.
US 7,750,148
App. No.
10/580,561
Granted
Jul 6, 2010
Kind
B2
Abstract

An intermediate compound represented by formula (IV) as follows:

Claims (1)

1. An intermediate compound represented by formula (IV) as follows:

Assignments (2)
CHANGE OF NAME Recorded Feb 23, 2012
From: ZHEJIANG YONGNING PHARMACEUTICAL FACTORY
To: ZHEJIANG YONGNING PHARMACEUTICAL CO., LTD.
Reel/Frame 027749/0245 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2006
From: YE, FENGQI; FANG, SHANZONG; LU, XIUWEI
To: ZHEJIANG YONGNING PHARMACEUTICAL FACTORY
Reel/Frame 017960/0390 →
Priority Claims (2)
CN 2003 1 0108979 · Nov 28, 2003 · national
CN 2004 1 0083434 · Sep 29, 2004 · national
Continuity (1)
Related Publication 20070093464A1 · Apr 26, 2007