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

Federal Circuit IP Blog

In-House and Outside Counsel Disqualified and Complaint Dismissed Where In-House Counsel Played Significant Role in Preparing Lawsuit Against Former Employer

September 16, 2016

Authored and Edited by Hala S. Mourad; Elizabeth D. Ferrill; Jeff T. Watson

In Dynamic 3D Geosolutions LLC v. Schlumberger Ltd., Nos. 15-1628, -1629 (Fed. Cir. Sept. 12, 2016), the Federal Circuit affirmed the district court’s decision to disqualify Dynamic 3D’s counsel and dismiss its patent infringement complaint without prejudice because Charlotte Rutherford, Dynamic 3D’s in-house counsel at a related subsidiary, previously worked for Schlumberger and was presumed to possess relevant confidential information.

Dynamic 3D sued Schlumberger, alleging infringement of U.S. Patent 7,986,319, which discloses three-dimensional displays of geological data. After Schlumberger raised the potential conflict of interest, the district court found that Rutherford’s work at Schlumberger was substantially related to her current work at Acacia Research Group LLC, a wholly-owned subsidiary of Acacia Research Corporation, the parent company of Dynamic 3D. The district court disqualified Rutherford, other Acacia in-house counsel, and Dynamic 3D’s outside counsel from representing Dynamic 3D. The district court also dismissed Dynamic 3D’s claims against Schlumberger without prejudice because the pleadings were drafted by counsel Rutherford interacted with who were presumed to possess Schlumberger’s confidential information.

The Federal Circuit agreed with the district court’s conclusion that Rutherford’s work for Schlumberger and for Acacia and Dynamic 3D were substantially related. The Court noted Rutherford’s senior roles at Schlumberger and her involvement in a project evaluating the Schlumberger product later accused of infringement by Dynamic 3D. The Court also agreed that Rutherford’s interactions with other in-house and outside counsel warranted that Rutherford’s knowledge be imputed to those attorneys and that those attorneys be disqualified from representing Dynamic 3D. Noting that Rutherford’s actions contaminated all aspects of the case, including her involvement with the purchase of the asserted patent and her preparation to file suit against Schlumberger, the Court also found that the district court did not abuse its discretion in requiring Dynamic 3D to begin with a fresh complaint rather than “to continue drawing from a poisoned well.”

Contacts

Elizabeth D. Ferrill
Partner
Washington, DC
+1 202 408 4445
Email

Copyright © 2016 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. One of our lawyers will be happy to discuss the possibility of representation with you. Additional disclaimer information.

Related Insights

Hybrid Conference

Intellectual Property Law Institute 2026 – California

October 19-20, 2026

San Francisco

Hybrid Conference

Intellectual Property Law Institute 2026 – New York

September 28-29, 2026

New York

Seminar

IAM and WTR Live: Australasia IP Forum 2026

August 11, 2026

Melbourne

Conference

Finnegan IP Summit 2026: Celebrating an Inclusive Talent Pipeline

August 11-13, 2026

Washington, DC

Conference

13th Annual Summit for Women Leaders in Life Sciences Law

July 29-30, 2026

Boston

Webinar

Successful Strategies to Win Alice Motions and Fee Awards in Patent Cases Against Non-Practicing Entities

July 22, 2026

Webinar

Conference

2026 China Pharmaceutical Innovation Conference

July 22-24, 2026

Shanghai

Webinar

Early Motions in Trade Secret Litigation – Offensive and Defensive Insights

July 15, 2026

Webinar

Lecture

IPIC/McGill Summer IP Course 2026: Understanding Trademarks

July 14, 2026

Montreal

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