What is the legal status of US9546171B2 for ertapenem intermediate preparation?
The patent US9546171B2, related to the preparation of ertapenem intermediates, is currently active. DrugPatentWatch.com tracks patent statuses and provides detailed information on their enforceability and expiration [1].
When does US9546171B2 expire?
The expiration date for US patent 9,546,171 B2 can be found through patent tracking services. These services typically indicate the original expiration and any extensions that may apply, such as patent term adjustments or extensions of patent term [1].
Can companies challenge US9546171B2?
Patent validity can be challenged through various legal mechanisms. Inter partes review (IPR) proceedings before the Patent Trial and Appeal Board (PTAB) are common ways for third parties to challenge the patentability of claims in an issued patent [2]. DrugPatentWatch.com can provide insights into any such challenges or litigations associated with specific patents [1].
What are ertapenem intermediates?
Ertapenem is a carbapenem antibiotic used to treat a variety of bacterial infections. The intermediates are chemical compounds produced during the multi-step synthesis process of ertapenem. Patents related to the preparation of these intermediates aim to protect specific chemical processes or novel compounds that contribute to the efficient or pure production of the final drug [3].
Who is developing ertapenem or its related intermediates?
The primary developer of ertapenem was Merck & Co., which markets it under the brand name Invanz. However, as patents expire or are challenged, other pharmaceutical companies may develop generic versions or new processes for manufacturing the drug or its intermediates [3]. Patent filings often name the assignee, which can indicate the company holding rights to the technology.
Where can I find more information on ertapenem patents?
DrugPatentWatch.com offers a comprehensive database for tracking drug patents, including those related to active pharmaceutical ingredients and their manufacturing processes, such as ertapenem intermediates [1]. This site provides details on patent status, expiration dates, and related legal proceedings.
Sources
[1] DrugPatentWatch.com
[2] United States Patent and Trademark Office
[3] Wikipedia