Mr. Matthew Sean Yungwirth

Practice Details

• Firm Information
  Position

  Partner

  Firm Name

  Duane Morris LLP
• Representative Cases & Transactions
  Cases

  Representative Matters: Represented numerous networking infrastructure clients in dozens of patent litigations involving wireless st
  ards (e.g., 802.11, 3GPP, Zigbee) that resulted in voluntary dismissals of the plaintiffs' claims, judgments of non-infringement affirmed by the Federal Circuit, findings of unpatentability by the PTAB, or settlements advantageous to the clients.
  Represented largest commercial lighting company in the United States in connection with LED
  wireless networking patent district court cases
  three ITC investigations, which were resolved through voluntary dismissals or license agreements advantageous to client.
  Represented large U.S.-based semiconductor company in ITC investigation involving field effect transistors used in semiconductors for smartphones
  televisions, which was resolved through settlement.
  Represented Fortune 100 computer networking company in numerous patent litigation matters related to (i) Voice over Internet Protocol (VoIP) technology that resulted in an agreed dismissal with prejudice, (ii) Internet protocol
  security technology that resulted in an award to the client of fees
  expenses
  
  (iii) series of lawsuits related to wireless LAN technology, all of which were resolved through judgments of non-infringement affirmed by the Federal Circuit, or settlements advantageous to the clients.
  Represented three major mobile network operators (MNOs) in numerous patent litigation matters related to (i) multi-access network topologies, (ii) UMA networks, (iii) electronic billing systems,
  (iv) Voice over Internet Protocol (VoIP) technology that resulted in voluntary dismissals of the plaintiffs' claims, dismissal of claims due to license (affirmed by the Federal Circuit), or settlements advantageous to the clients.
  Represented a digital watermarking company in patent litigation matter that resulted in the plaintiff voluntarily dismissing its claims.
  Represented Internet security provider in patent litigation matter involving distributed security service management that resulted in settlement that the client found advantageous.
  Represented Fortune 500 hotel company in defense of numerous patent infringement matters including one that was dismissed without any payment by the client.
  Represented a major Wisconsin paper
  packaging company in a patent infringement matter that resulted in the company's competitor being enjoined from sales of infringing packaging products.
  Represented a healthcare products distributor in the successful pursuit of multiple claims for false advertising, theft of trade secrets
  trademark infringement.
  Represented Fortune 500 document management company in successful pursuit of injunction against a distributor of gray market goods.
  Represented leading manufacturer of kamado-style grills in enforcement of patent portfolio.
  Represent multiple privately held healthcare companies with respect to trademark portfolio management, defense of trademark infringement claims
  trademark enforcement.