Corey Johanningmeier


phone  (650) 351-7240

email   [email protected]

Corey specializes in complex intellectual property litigation and has both brought and defended such cases on behalf of startups, individuals, and Fortune 500 companies. In particular, he has substantial experience working with, presenting, and cross-examining engineer and expert witnesses. A trial lawyer at heart and in practice, Corey relishes the challenge of understanding innovative business models and technologies well enough not only to teach them, but to present them in a compelling way that can win a verdict or judgment from lay jurors or judges.

Prior to joining Bunsow De Mory, Corey gained over a decade of experience trying, litigating, and resolving high-stakes intellectual property cases at Keker, Van Nest & Peters and at Jones Day. He also served as a law clerk to the Honorable David F. Hamilton of the U.S. Court of Appeals for the Seventh Circuit and tried three misdemeanor cases to jury verdict as a volunteer Deputy District Attorney in Los Angeles. He has represented indigent clients pro bono in civil, family, traffic, eviction, and immigration courts, and in the U.S. Court of Appeals.

Corey had a previous career in electrical and computer engineering, working as a chip designer and technical marketing engineer on mixed-signal and very-large-scale integrated circuits—for disk drives, optical routers, network processors, and other applications. In his free time, he takes road trips, reads towards achieving polymathy, and tries to be a good Dad.

Awards & Recognition

  • Super Lawyers Rising Stars
  • Representation of DIRECTV, Inc. recognized in The Daily Journal’s “Top Verdicts of 2010

Presentations & Publications

  • “The 7 Virtues of the Design-Around,” Legaltech News, 2016
  • Presented as “IP Practitioner-in-Residence,” Center for Intellectual Property Research, IU Maurer School of Law, October 2016
  • Note published as “Law & Politics, The Case Against Judicial Review of Direct Democracy,” 82 Indiana Law Journal 1125


  • Indiana University, Maurer School of Law, J.D.; magna cum laude; Order of the Coif; Articles Editor, Indiana Law Journal; Extern to the Hon. David F. Hamilton, U.S. District Court for the Southern District of Indiana
  • University of Southern California, B.S., Electrical Engineering

Bar Admissions

  • California

Court Admissions

  • U.S. Court of Appeals, 7th Circuit
  • U.S. Court of Appeals, 9th Circuit
  • U.S. Court of Appeals, Federal Circuit
  • U.S. District Court, Northern District of California
  • U.S. District Court, Central District of California

Founders and Shareholders v. Technology Company.  Recovered tens of millions on behalf of sellers of acquired sensor technology, in a contractual indemnity action that was tried to an arbitrator and concerned settled patent and trade secret litigation.

Symantec Corp. v. Zscaler, Inc.  Defended cloud network security startup Zscaler in an ongoing fourteen-patent litigation in the Northern District of California. Argued for and secured dismissal of two patents as invalid for subject matter ineligibility.

EMC Corporation v. Pure Storage Inc.  Represented data storage innovator Pure Storage in a five-patent lawsuit in the District of Delaware. Defeated two patent assertions before trial, obtained jury verdicts of non-infringement as to two others as well as a verdict of zero lost profits, and won partial judgment as a matter of law and a new trial on invalidity as to the last, prior to a favorable global settlement.

Round Rock Research LLC v. SanDisk Corporation.  Defended SanDisk against numerous patent assertions in multiple jurisdictions. Obtained summary judgment of patent exhaustion in California, verdicts of invalidity and non-infringement in a first jury trial in Delaware, and summary judgment of invalidity vacating a second planned Delaware trial, followed shortly by a favorable global settlement.

CA, Inc. d/b/a CA Technologies v. New Relic, Inc.  Argued for and obtained summary judgment of non-infringement on behalf of New Relic, and dismissal of accused technologies with respect to additional patents, in ongoing litigation in the Eastern District of New York.

Comcast Cable Communications, LLC et al. v. BT Americas et al.  On behalf of Comcast, asserted multiple networking technology patents against BT in the Northern District of Texas. Obtained a favorable settlement.

Suffolk Technologies LLC v. AOL Inc. and Google Inc.  Represented defendants in advertising technology patent litigation in the Eastern District of Virginia. Obtained summary judgment of invalidity as to most claims and exclusion of plaintiff’s damages expert report on the eve of trial, which were upheld on appeal after stipulated dismissal of the one remaining claim.

DIRECTV, Inc. v. Confidential Indemnitor.  Successfully represented DIRECTV in all aspects of a breach of contract arbitration that was tried to a three-judge panel and concerned indemnity for patent infringement claims. Won an award and completely defeated counterclaims that were together worth more than $75 million dollars.

DIRECTV, Inc. Defended DIRECTV in multiple patent infringement actions involving various aspects of direct broadcast satellite television technology, interactive program guides, and set-top box functionalities.


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