STEPHANIE KOH serves as co-leader of Sidley’s global IP Litigation practice. Stephanie focuses on complex patent litigation and has achieved substantial trial success on behalf of some of the world’s most sophisticated organizations. She has represented clients in both offensive and defensive postures in cases involving a wide variety of technologies, including pharmaceuticals, medical devices, power converters and communications systems. Recognized as an “Illinois Patent Star” by Managing IP (2021, 2022), Stephanie frequently leads case teams and argues high stakes dispositive motions that have led to countless victories for her clients. Leveraging her training in chemical engineering, Stephanie is well-positioned to quickly establish in-depth understanding of technologies involved in her clients’ businesses and is thus a fierce advocate in the courtroom.

パートナー
Stephanie P. Koh
- 知的財産権訴訟
経験
- 代表案件
Representative Patent Cases
PEDDINGHAUS
- Ficep Corp. v. Peddinghaus Corp. (D. Del.) — prevailed as lead lawyer in obtaining summary judgment in favor of Peddinghaus in a patent infringement case regarding automation in manufacturing processes brought by competitor Ficep. Following oral argument, the court granted Peddinghaus’s motion for summary judgment that all claims of Ficep’s lone asserted patent are invalid for claiming patent ineligible subject matter. (Judgment 2/28/22)
CALAMP CORP.
- Omega v. CalAmp (M.D. Fla) — represented CalAmp as second chair in retrial after obtaining remand on appeal. Obtained a jury verdict of no induced infringement, and therefore no liability, on two patents and no willful infringement on any patent. One patent that was found to be valid and infringed in first trial (where Sidley was not counsel) was found by jury to only have one infringing unit and damages of $1.00. One patent that was found to be infringed had damages reduced to $5/unit. Previous award, which included treble damages and attorneys’ fees and totaled more than $20M, reduced to $4.6M. In a further appeal, the case was remanded yet again for a new trial on damages. (2019-2022)
- ORBCOMM v. CalAmp (E.D. Va) — represented CalAmp in five-patent suit directed at systems for tracking, monitoring, and controlling remote assets. Invalided one patent on 101 ground, obtained voluntary stipulations of dismissal with prejudice on three additional patents, and obtained a stipulation of non-infringement regarding the one remaining patent following claim construction. The case, along with an affirmative case CalAmp brought accusing ORBCOMM of infringing two of CalAmp’s patents, settled and was dismissed in May 2017.
MICROSOFT
- InterDigital Comm. Inc. et al v. Nokia Corp. et al. (D.Del) — represented Nokia Inc. and Microsoft Mobile Oy in patent infringement case involving Nokia mobile phones and Microsoft tablets. (2015)
- Zix Corp. v. Echoworx Corp. (E.D. Tex.) — represented Microsoft in a patent infringement case defending against third-party complaint filed by Echoworx. Successfully obtained early dismissal of Microsoft on a motion to dismiss. (2015–2016)
- Dynamic Data v. Microsoft (E.D. Tex.) — represented Microsoft in a patent infringement case involving 13 patents relating to video processing technology. Case was resolved and dismissed in 2019.
OWENS CORNING
- Fast Felt v. Owens Corning (N.D. Ohio) — represented Owens Corning in a patent infringement suit directed at Owens Corning’s SureNail® roofing shingles and the process for making them. After prevailing at a Markman hearing in the district court, prevailed in the Federal Circuit on an appeal of an IPR ruling, which resulted in the asserted patent being invalidated. District court case was then dismissed. (2017)
- CertainTeed v. Owens Corning (D. Del.) — counsel for Owens Corning in a patent infringement suit involving five patents directed at laminated shingles. Patents all invalidated in IPRs. (2016)
MAGNA
- Panasonic Corporation v. Magna International, Inc. (W.D.TX) — counsel for Magna in competitor suit involving patents on radar and camera systems in vehicles. (2022)
- Magna Mirrors of America v. SMR (W.D. MI) — counsel for Magna in a patent suit against a competitor relating to rearview mirror systems that reduce the driver’s blind spot. Defeated institution of SMR’s 10 petitions for inter partes review of Magna’s patents. Prevailed on all claim construction issues, and obtained summary judgment of infringement. (2022)
- Wildcat Licensing v. Magna International, Inc. et al. (D. Del.) — counsel for Magna in a patent suit directed to manufacturing methods and assembly systems; case stayed after IPRs were instituted. (2021)
MEDLINE
- Medline Industries v. CR Bard (N.D. Ill.) — counsel for Medline in three patent infringement cases relating to various aspects of a single-layer catheter assembly. (2022)
AIRCELL, INC./GOGO, LLC
- Ambit v. Aircell (D. Mass.) — prevailed as second chair counsel for Defendants Aircell and Delta Air Lines in a three-week jury trial before Judge Young; plaintiff alleged that Aircell’s Gogo® inflight internet service infringes Plaintiff’s patent; the jury found no infringement and all patent claims invalid for anticipation, obviousness, lack of enablement and insufficient written description. (Verdict 07/28/10)
- Advanced Media Networks v. Gogo, Aircell, Delta Air Lines, et al. (C.D. Cal.) — counsel for Gogo and all other defendants for alleged patent infringement directed at the Gogo® inflight internet service. Obtained favorable Markman ruling on 6/14/2013 leading to settlement.
NATIONAL PASTEURIZED EGGS, INC.
- National Pasteurized Eggs, Inc. et. al. v. Michael Foods, Inc. et. al. (W.D. Wis.) — trial counsel for National in patent infringement suit involving three of National’s and three of Michael Foods’ patents, all directed at the in-shell pasteurization of eggs. The jury found each of National’s patents to be infringed and not invalid, and invalidated all of Michael Foods’ patents on written description and enablement grounds. The jury awarded approximately $6 million in damages. Following the verdict, the court entered a permanent injunction on 6/19/2012 and denied all post-trial challenges on 3/29/13. The case settled while on appeal.
SYNQOR, INC.
- SynQor, Inc. v. Artesyn Technologies, Inc., et al. (E.D. Tex.) — represented SynQor in patent infringement action against 11 of the largest suppliers of DC-DC power converters. Successes included:
- Prevailed as part of the in-court trial team before a jury in Marshall, Texas. The jury ruled for SynQor on each of its patent infringement claims and awarded SynQor the entirety of what it sought from each of the eleven defendants. In total, SynQor was awarded more than $95 million, which included lost profits and price erosion damages. (Jury Verdict 12/21/10)
- Prevailed as part of an in-court team in obtaining a permanent injunction after a two-day evidentiary hearing directed at whether and when a permanent injunction should issue. In granting an immediately effective permanent injunction, the U.S. district court rejected the defendants’ request for a lengthy transition period in which they could continue to sell the infringing products to certain end-customers, including Cisco Systems, Inc. (2011 WL 238645 (E.D. Tex., January 24, 2011))
- Obtained supplemental damages and sanctions against certain defendants for infringing sales not included in the jury verdict. (2011 WL 2683181 and 2011 WL 2683184 (E.D. Tex., July 11, 2011))
- Final judgment affirmed in full by the Federal Circuit. (March 13, 2013) Petitions for en banc review and to stay the mandate were denied in May and June 2013.
- SynQor, Inc. v. Artesyn (E.D. Tex.) — trial counsel for SynQor in a four-day bench trial against some of the defendants in the earlier case for continuing to induce infringement after the entry of a permanent injunction and for allegedly violating the permanent injunction. Established liability and obtained additional damages; case settled on appeal in November 2015.
- Lineage Power Corp. v. SynQor, Inc. (E.D. Tex.) — represented SynQor in patent infringement action involving nine patents relating to power converters; case settled on favorable terms. (August, 2011)
- SynQor, Inc. v. Ericsson, et al. (E.D. Tex.) — representing SynQor in a patent infringement action the involving same patents asserted in Artesyn case; settled with Ericsson on favorable terms on the eve of the preliminary injunction hearing; settled with Cisco on eve of trial in November 2015; the case is ongoing as to Vicor. (2011)
MERCK
- Merck Sharp & Dohme Corp. v. Actavis (D. NJ) — counsel for Merck in Hatch-Waxman case directed at the antibiotic Dificid®. Case settled in 2021.
JOHNSON & JOHNSON
- Ethicon Endo-Surgery, Inc. v. Crescendo Technologies, LLC. (S.D. Ohio) — represented Ethicon in a dispute over the ownership of patent applications relating to ultrasonic shears. Case concluded with a favorable result for Ethicon following a 10-day jury trial. (2009)
- Boston Scientific Corp. and Target Therapeutics, Inc. v. Cordis Corp. (N.D. Cal.) — represented Cordis in a patent case involving medical devices for the endovascular treatment of aneurysms and vascular malformations; favorably settled on the eve of trial. (2002–2009)
- Ethicon Endosurgery, Inc. — represented Ethicon in arbitration over a patent infringement claim relating to a medical device. (2006)
- Applied Medical Resources Corp. v. Ethicon Endo-Surgery, Inc. (C.D. Cal.) — represented Ethicon in a patent case involving three sets of medical device patents; favorably settled on the eve of trial. (2005)
ALLSTATE
- ATOS, LLC v. Allstate Insurance Company (N.D. IL.) — counsel for Allstate in case involving claims of patent infringement and trade secret misappropriation; filed motions to dismiss and to stay discovery. (2022)
CIBA VISION CORPORATION
- CooperVision v. CIBA Vision Corp. (E.D. Tex.) — second chair counsel for CIBA at a Markman hearing relating to patents on toric and other soft contact lenses; case settled on favorable terms shortly thereafter. (2007)
ニュース&インサイト
資格
弁護士資格・登録
- U.S. Court of Appeals, Federal Circuit
- U.S. District Court, N.D. of Illinois - General
- U.S. District Court, W.D. of Michigan
- Illinois
学歴
- シカゴ大学法科大学院 , 法務博士, 2001 (with high honors, Order of the Coif, Book Review and Business Editor, Law Review)
- Rice University, B.S. in Chemical Engineering, 1996 (magna cum laude)
クラークシップ
- J. Harvie Wilkinson III, U.S. Court of Appeals, 4th Circuit (2001 - 2002)