Marlee R.Hartenstein


匹茲堡 + 1.412.394.7257

Marlee Hartenstein's practice focuses on patent litigation matters across numerous industries, from medical devices to computer software. She practices before U.S. district courts, the U.S. Patent and Trademark Office's (USPTO) Patent Trial and Appeal Board (PTAB), and the U.S. International Trade Commission (ITC).

Marlee has penned case dispositive motions before federal courts, worked closely with experts and fact witnesses to develop and distill testimony and expert opinions, and drafted claim construction briefings. She also maintains an active patent prosecution and counseling practice. As a registered patent attorney, she has experience preparing and prosecuting U.S. patent applications directed to various software and hardware innovations. In addition, Marlee provides services in other intellectual property-related areas, including IP due diligence, licensing drafting, and trade secret misappropriation litigation.

Marlee is actively involved with Lydia's Love Moments, a nonprofit organization supporting cardiac patients and families at the Children's Hospital of Pittsburgh.


  • SHEnB resolves patent infringement claims brought at the ITC involving skin treatment devicesJones Day was lead counsel defending Sung Hwan E&B Co., Ltd. ("SHEnB"), a Korean manufacturer of medical devices for the health & beauty industry, and two of its distributors against patent infringement claims brought by Serendia, LLC before the International Trade Commission.
  • Real Alloy sells European business to SpeiraJones Day advised Real Alloy Holding, LLC in the sale of its European aluminum and magnesium recycling operations to Speira GmbH, an affiliate of KPS Capital Partners.
  • Riverside portfolio company acquires Cornerstone ITJones Day represented The Riverside Company in connection with the acquisition and financing by portfolio company Logically of Cornerstone IT, a highly-regarded full-service IT Managed Services Provider serving customers in the professional services, manufacturing, insurance, and construction/development industries.
  • Cohesity disposes of six-patent litigation brought by adverse competitor CommvaultJones Day successfully represented Cohesity Inc. ("Cohesity") and obtained dismissal in a six-patent, competitor suit filed by Commvault Systems in April 21, 2020.
  • U.S. Bank defends patent infringement claims involving gift cards sold in shopping mallsJones Day is defending U.S. Bank National Association in two related patent infringement disputes initially brought by AlexSam, Inc. related to prepaid gift cards sold in Simon shopping malls.
  • Owens Corning successfully defends ITC action involving roofing underlayment productsJones Day represented Owens Corning, Owens Corning Roofing & Asphalt, LLC, and InterWrap Corp. ("Owens Corning") in multi-venue litigation relating to synthetic roof underlayment patents asserted by Kirsch Research & Development, LLC ("Kirsch").
  • Google invalidates three patents in IPRs asserted against Google AssistantJones Day successfully represented Google LLC ("Google"), invalidating three patents owned by Sovereign Peak Ventures, LLC ("SPV").
  • Ricoh granted summary judgment of non-infringement in patent case relating to office and production printer technologyOn behalf of Ricoh USA, Inc., Jones Day obtained an order granting a motion for summary judgment of non-infringement on the five remaining patents in a case originally involving 19 patents relating to both hardware and software aspects of office and production printer technology.
  • Huntington Ingalls Industries acquires Alion Science and Technology for $1.65 billionJones Day advised Huntington Ingalls Industries in the $1.65 billion acquisition of Alion Science and Technology Corporation from Veritas Capital.
  • Specialty engineered woods manufacturer reaches settlement in trade secret and supply agreement disputeJones Day represented an industry leader in the manufacture of specialty engineered wood products in a lawsuit against a supplier involving allegations of misappropriation of trade secrets, breach of contract, tortious interference, and unfair competition.
  • American Pacific Group portfolio company acquires PenetrexJones Day represented American Pacific Group in connection with the acquisition by portfolio company Wellbeam Consumer Health LLC, formerly Yukon Wellness Holdings LLC, of Penetrex, a leading joint and muscle relief and recovery brand.
  • Riverside portfolio company acquires Network Guidance 2.0 (NG2)Jones Day represented The Riverside Company in connection with the acquisition by portfolio company Logically of Network Guidance 2.0 (NG2), a Minneapolis, Minnesota, IT managed services provider serving businesses throughout the Midwest.
  • Riverside portfolio company acquires Network Support CompanyJones Day represented The Riverside Company in connection with the acquisition by portfolio company Logically of Network Support Company, an IT managed services provider serving local, national and international businesses across more than 35 industries in 36 states.
  • American Pacific Group acquires Eu NaturalJones Day advised American Pacific Group in the acquisition of Eu Natural, a provider of vitamin and mineral nutritional supplement products.
  • Morgan Stanley Capital Partners invests in AWT Labels & Packing and Citation Healthcare LabelsJones Day advised Morgan Stanley Capital Partners in connection with its investment in and financing of Advanced Web Technologies Holding Company, which operates as AWT Labels & Packaging and Citation Healthcare Labels, from Mason Wells, a Midwest-based private equity firm.
  • Riverside portfolio company acquires Personal Computer ResourcesJones Day represented The Riverside Company in connection with the acquisition by portfolio company Logically, a rapidly growing provider of comprehensive outsourced IT and security services to small- and medium-sized businesses, of Personal Computer Resources, an IT managed services provider to businesses in Eastern Massachusetts and Rhode Island.
  • UPMC subsidiary Curavi Health combined with CarePointe and U.S. Health Systems to form Arkos HealthJones Day advised University of Pittsburgh Medical Center (UPMC) in the business combination of its subsidiary Curavi Health, Inc. with CarePointe and U.S. Health Systems to form Arkos Health, a company that will provide virtual care solutions and health insights to vulnerable populations across the United States.
  • Google defends 15 patent infringement lawsuits brought by WSOU relating to multiple productsJones Day is acting as lead defense counsel on behalf of Google LLC in 15 patent infringement lawsuits in the Western District of Texas brought by WSOU Investments, LLC relating to a range of Google's products, including Pixel, YouTube TV, YouTube Music, G Suite, Gmail, and Nest Cam.
  • Riverside invests in LMG HoldingsJones Day advised The Riverside Company in connection with its investment in LMG Holdings, Inc., a provider of ignition interlock devices (IIDs) used to help prevent drunk driving.
  • Chemco defends against allegations of patent infringement and trade secret misappropriation by competitorJones Day is defending Chemco Systems, L.P. against allegations of patent infringement as well as misappropriation of RDP Technologies, Inc.'s trade secrets in violation of the Pennsylvania Uniform Trade Secrets Act and the Defend Trade Secrets Act of 2016.