Stephanie Sivinski


Education and Clerkships

J.D., University of Texas at Austin School of Law, 2010, High Honors; Order of the Coif; Texas Law Review, Member; Winner, Bracewell and Giuliani Best Memo Competition, 2008

B.S., Genetics, Texas A&M University, 2007, summa cum laude; National Merit Scholar, 2003-2007

  • Judge Mark E. Fuller, United States District Court, Middle District of Alabama, 2010-2011


Texas, 2010

Court Admissions

United States Supreme Court

U.S. District Court for the Eastern District of Texas

U.S. District Court for the Northern District of Texas

U.S. District Court for the Southern District of Texas

U.S. Court of Appeals for the Federal Circuit


Stephanie Sivinski is able to weave complicated concepts into persuasive written advocacy that both the court and the fact-finder can understand. Stephanie’s intellectual property and commercial litigation practice focuses on the chemical and life sciences, including representation of generic pharmaceutical companies in Hatch-Waxman litigation. Her practice has also touched on topics as varied as thermodynamics, computer software, and semiconductor manufacturing. Whether in motion practice before the federal district court or briefing in the courts of appeals, Stephanie can convey the necessary technical detail while focusing on the important legal and factual issues. Clients highly value this skill, particularly in federal court litigation where most decisions are based entirely on the parties’ written submissions.

Before putting her technical and writing skills to work in patent, copyright, and trade secret disputes, Stephanie honed these skills as a judicial law clerk to a United States District Judge. While pursuing an undergraduate degree in genetics, Stephanie developed a working knowledge of organic chemistry, biochemistry, analytical chemistry, microbiology, and molecular genetics. As an undergraduate research assistant, she frequently performed DNA amplification, reverse transcription, and gel electrophoresis techniques.

In addition to her civil litigation practice, Stephanie has devoted a great deal of time to pro bono representation of an inmate on Texas death row. She participated in the two-week-long evidentiary hearing on his petition for writ of mandamus and presented evidence that her client is ineligible for the death penalty under the Eighth Amendment’s prohibition on executing intellectually disabled individuals. Stephanie takes great pride in the opportunity to tell her client's story.

Patent Litigation

Barnett Shale

Haynes and Boone Secures Win in Barnett Shale Natural Gas Well Patent Dispute

Haynes and Boone, LLP lawyers secured a summary judgment of noninfringement for client BlueStone Natural Resources II, LLC in an Eastern District of Texas patent-infringement case.

Selected Client Representations

  • Currently representing semiconductor manufacturer in patent infringement case relating to semiconductor fabrication techniques.  (E.D. Tex.)
  • Defended inventors of laser ultrasound technology against claims brought by former employer for patent infringement, trade secret misappropriation, and declaratory judgment of patent ownership. The client was able to reach a settlement in this matter. (N.D. Tex.)
  • Represented holder of wireless electric meter patent in multi-district litigation. (W.D. Okla.)
  • Submitted briefs to the United States Court of Appeals for the Fifth Circuit in a software copyright case and the United States Court of Appeals for the Federal Circuit in a patent infringement case.
  • Represented a generic drug manufacturer defending against claims of patent infringement under the Hatch-Waxman Act. The matter reached a favorable settlement. (D. Del.)
  • Defended a non-profit organization against claims of copyright infringement and breach of contract, helping to reach a very favorable settlement for the client. (E.D. Va.)
  • Defended major clothing manufacturer against claims of breach of contract and tortious interference with a contract. Stephanie filed a motion to dismiss the plaintiff's claims, and the plaintiff voluntarily dismissed the suit in its entirety, with prejudice. (N.D. Tex.)
  • Assisted in the defense of Fortune 500 Company against claims of patent infringement, helping to obtain a judgment as a matter of law on the issue of willful infringement and eliminating the possibility of treble damages. (C.D. Cal.)

Selected Publications and Speeches

  • "Federal Circuit Appeals From the PTAB: A New Game or Just the Same Old Practice," Journal of the Patent & Trademark Office Society, November 22, 2013.
  • "Federal Circuit Appeals From the PTAB: A New Game or Just the Same Old Practice?" co-author, Haynes and Boone White Paper, February 1, 2013.
  • "Putting Too Many (Fertilized) Eggs in One Basket: Methods of Reducing Multifetal Pregnancies in the United States," 88 Texas L. Rev. 897 (2010).

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