Last Updated: August 9, 2026

Details for Patent: 9,657,021


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Which drugs does patent 9,657,021 protect, and when does it expire?

Patent 9,657,021 protects ZAYNICH and is included in one NDA.

This patent has sixteen patent family members in ten countries.

Summary for Patent: 9,657,021
Title:Process for preparation of (2S, 5R)-7-oxo-6-sulphooxy-2[((3R)-piperidine-3-carbonyl)-hydrazino carbonyl]-1,6-diaza-bicyclo [3.2.1]-octane
Abstract:A process for preparation of (2S,5R)-7-oxo-6-sulphooxy-2-[((3R)-piperidine-3-carbonyl)-hydrazino carbonyl]-1,6-diaza-bicyclo[3.2.1]octane of Formula (I) is disclosed which is comprising reacting a compound of Formula (II) with a compound of Formula (III) to obtain a compound of Formula (IV). Crystalline compounds of Formula (I) are claimed.
Inventor(s):Sanjeev Joshi, Karuna Suresh WANKHEDE, Sunil Bhaginath Jadhav, Shivaji Sampatrao Pawar, Vinod Kashinath AHIRRAO, Satish Bhawsar, Prasad Keshav Deshpande, Ravindra Dattatraya Yeole, Mahesh Vithalbhai Patel
Assignee: Wockhardt Ltd
Application Number:US14/769,815
Patent Claim Types:
see list of patent claims
Use; Compound; Process;
Patent landscape, scope, and claims:

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Drugs Protected by US Patent 9,657,021

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Wockhardt Bio Ag ZAYNICH cefepime hydrochloride; zidebactam POWDER;INTRAVENOUS 220787-001 May 29, 2026 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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