直 Japanese PDF Font
  • Our Professionals
  • Our Work
  • Our Insights
  • Offices
  • Firm
  • Careers
Finnegan
  • Articles & Books
    • Ad Law Buzz Blog
    • At the PTAB Blog
    • European IP Blog
    • Federal Circuit IP Blog
    • INCONTESTABLE® Blog
    • Prosecution First Blog
  • Events & Webinars
  • IP Updates
  • Podcasts
    • AI + Finnegan
    • AI + Copyright
    • AI + Patent
    • AI + Privacy
    • AI + Trade Secrets
    • AI + Trademark
  • Unified Patent Court (UPC) Hub

At the PTAB Blog

Expanded Panel Grants Request for Rehearing Allowing Joinder to Correct a Prior Deficiency

October 19, 2015

Authored and Edited by Alyssa J. Holtslander; Anthony A. Hartmann

In a rare expanded panel majority opinion, the PTAB granted a Request for Rehearing allowing for the institution and joinder of a second IPR petition filed by the same party that corrected an error in a first IPR petition. Zhongshan Broad Ocean Motor Co., Ltd., et al. v. Nidec Motor Corp., IPR2015-00762 (October 5, 2015) (Paper 16) at 9. The majority based its decision on 35 U.S.C. § 315(c), which allows “the Director, in his or her discretion, [to] join as a party to that inter partes review any person who properly files a petition under section 311 that the Director, after receiving a preliminary response under section 313 or the expiration of the time for filing such a response, determines warrants the institution of an inter partes review under section 314.”

The majority relied on another expanded panel’s majority decision in Target Corp. v. Destination Maternity Corp., IPR2014-00508 (February 12, 2015) (Paper 28) which analyzed the legislative intent of 35 U.S.C. § 315(c) and further held that the language of 35 U.S.C. §  315(c) regarding “any person who properly files a petition under section 311” does not exclude petitioners that are already a party despite the second petition being potentially time-barred by 35 U.S.C. § 315(b). Zhongshan at 3-5. In Target, the majority opinion relied on the use of “any person” in the statute as support that the legislative intent had not excluded the same petitioner. Target at 8. The Zhongshan majority opinion distinguished their decision from other situations in which joinder may be denied because, in this case, the error was not on the merits. Zhongshan at 7-8.

In a further rare occurrence for a PTAB decision, two members of the expanded panel filed a dissent arguing that the majority decisions expands the legislature’s intended scope of 35 U.S.C. § 315(c). Zhongshan (dissent) at 1. Specifically, the dissent explained that “any person” in 35 U.S.C. § 315(c) is constrained to those that can be “join[ed] as a party;” thus the statute is limited to the joinder of parties and does not encompass the joinder of issues.  Id.. The dissent further explains that the majority’s decisions frustrates the intent of the one-year statutory bar instituted in 35 U.S.C. § 315(b) by allowing for potential harassment of patent owners by repeated administrative attacks. Id. at 1-2.  This mirrors the rationale of the dissent in Target.  Target at 17.

As neither Target nor Zhongshan is precedential, there is no clear indication from the PTAB on the scope of the authority granted by the legislature with respect to joinder of IPR proceedings with different issues, filed by the same party and after the one-year statutory bar.

Tags

35 U.S.C. § 315(b), dissent, joinder

Related Practices

Patent Office Invalidation Proceedings

PTAB Invalidation Proceedings: IPR and PGR

Contacts

Anthony A. Hartmann
Of Counsel
Washington, DC
+1 202 408 4275
Email

Copyright © 2015 Finnegan, Henderson, Farabow, Garrett & Dunner, LLP. 

DISCLAIMER: Although we wish to hear from you, information exchanged in this blog cannot and does not create an attorney-client relationship. Please do not post any information that you consider to be personal or confidential. If you wish for Finnegan, Henderson, Farabow, Garrett & Dunner, LLP to consider representing you, in order to establish an attorney-client relationship you must first enter a written representation agreement with Finnegan. Contact us for additional information. Additional disclaimer information. 

Related Insights

Conference

7th International Conference on Biofuels and Bioenergy

June 25-26, 2026

Edinburgh

Charitable

Bridges From School to Work Gala 2026

June 22, 2026

Washington, DC

Charitable

Banding Together 2026

June 18, 2026

Washington, DC

Conference

2026 Copyright Society Annual Meeting

June 14-16, 2026

Louisville

Conference

17th Summit on Biosimilars & Innovator Biologics

June 2-3, 2026

New York

At the PTAB Blog

IPR and PGR Statistics for Final Written Decisions Issued in March and April 2026

May 26, 2026

Reception

12th Annual Georgia Asian Pacific American Bar Association Gala

May 21, 2026

Atlanta

At the PTAB Blog

Before the Holding, the Message: Director Squires Uses Magnolia Medical to Outline PTAB Discretionary Denial Policy Changes

May 20, 2026

Conference

19th Annual Forum on Pharma & Biotech Patent Litigation in Europe

May 19-20, 2026

Amsterdam

Due to international data regulations, we’ve updated our privacy policy. Click here to read our privacy policy in full.

  • Privacy
  • Disclaimer
  • Legal Notices
  • Fraud Alert
  • EEO Statement
  • Cookies
  • Contact Us

© 2026 Finnegan, Henderson, Farabow, Garrett & Dunner, LLP