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- Peter Crowther
- International Managing Partner
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International Managing Partner
Capabilities 87 results
Practice Area
Practice Area
Tax Controversy & Criminal Tax
Our Tax Controversy attorneys advise and represent clients in every aspect of federal and state tax investigations, as well as the criminal tax enforcement process. This includes the Internal Revenue Service’s (IRS) multi-jurisdictional examinations and administrative appeals, U.S. Competent Authority representations, post appeals mediation, and trial court and appellate litigation in every federal court hearing a tax matter.
Experience 131 results
Experience
|January 31, 2025
Winston Secures Complete Defense Judgment for Alphatec in Prolonged Litigation Battle
Experience
|November 25, 2024
Creative Global Technologies Closes On Initial Public Offering
Insights & News 3,458 results
Seminar/CLE
|May 13, 2025
2025 Health Care & Life Sciences Summit
Winston & Strawn is pleased to host its fifth annual Health Care & Life Sciences Summit. Clients and friends of the firm are invited to join us to network with peers and gain insights from industry leaders and legal experts. The summit will take place live at our Chicago office, and CLE-eligible recordings of the Summit’s sessions will be available shortly following the event.
Speaking Engagement
|May 9, 2025
Join Winston & Strawn partners M. Imad Khan and Keerthika M. Subramanian for the upcoming online program “Hot Topics in International Arbitration and Strategic Transactions: Recent Developments and Key Trends in India” hosted by the Practising Law Insititute.
Sponsorship
|April 22, 2025
Winston & Strawn Sponsors the Centri Capital Conference 2025
Winston & Strawn is proud to sponsor the inaugural Centri Capital Conference at Nasdaq in New York City. Attendees will engage with innovative companies across health care, life sciences, disruptive technologies, and more. The event will feature company presentations, one-on-one meetings, insightful panels, and fireside chats. Key topics include the capital market journey for disruptive companies, trends in venture capital, private equity, and private credit, the impact of AI on investors and issuers, and the role of cryptocurrency and blockchain in capital markets. Additionally, the event will explore upcoming global economic and regulatory changes.
Other Results 68 results
Law Glossary
A post-grant review, or PGR, is a trial proceeding where the patentability of one or more claims in a patent is reviewed. The review process begins when a third party, who is not the patent owner, files a petition within nine months of a patent being granted or reissued. This filing challenges a patent’s claim or claims based upon a specific ground. The Patent Trial and Appeal Board (PTAB) is the branch of the U.S. Patent and Trademark Office that handles the trial proceeding. The post-grant review can be filed on any grounds that are available to dispute the validity of a patent claim, except for the following: failure to disclose the best mode requirement.
Law Glossary
What Is an Inter Partes Review (IPR)?
An inter partes review of a patent is a type of administrative trial proceeding. Inter partes review became available in 2012 and replaced inter partes reexamination as a way to challenge patentability at the Patent Office. Any person who is not the owner of a patent can file a petition for a review of a patent. The Patent Trial and Appeal Board (PTAB) will act on the petition either instituting a trial or denying institution of a trial. This will occur a little over six months after the petition is filed. If trial is instituted, the proceeding will, with some limited exceptions, be resolved within one year.