Recent patent infringement cases filed in U.S. District Courts

Marilyn Tennissen Apr. 17, 2008, 12:55am

Marshall Division, Eastern District of Texas

April 11

  • SSL Services LLC vs. Citrix Systems Inc.

    The suit concerns virtual private network technology, a private communications network to communicate confidentially over a public network.

    SSL claims it owns the rights to U.S. Patent No. 6,061,796 issued May 9, 2000, for a Multi-Access Virtual Private Network.

    The plaintiff alleges that Citrix Systems Inc. and Citrix Online LLC have infringed the '796 Patent by making and selling Internet-based access, support and collaborative software including GoToMyPC. The products and services are a solution for remote, secure and managed desktop personal computer access over the Internet.

    According to the plaintiff's original complaint, the suit relates to the patented invention that incorporates aspects of client-server and peer-to-peer architectures that allows clients to communicate with each other in a secure manner over a Virtual Private Network.

    SSL is seeking injunctive relief, compensatory damages, interest, costs, attorneys' fees and other just and proper relief.

    Eric Albritton of Longview is representing the plaintiff. Attorneys from Dickstein Shapiro LLP in Washington, D.C., are of counsel.

    The case has been assigned to U.S. District Judge T. John Ward.

    Case No. 2:08-cv-158-TJW

    Sherman Division, Eastern District of Texas

    April 11

  • Voxpath Networks vs. Verizon Communications Inc. et al

    Voxpath claims it is the owner of U.S. Patent No. 7,068,646 for a System and Method for Performing IP Telephony Including Internal and External Call Sessions. The patent was issued June 27, 2006.

    The plaintiff alleges that 17 defendant companies have infringed the '646 Patent. Defendants named in the suit include Verizon Communications and Verizon Business Network Services,, Broadview Networks, Covad Communications, Cox Enterprises and Cox Communications, Embarq, New Global Telecom and Nuvio Communications.

    The suit claims that the defendants infringe the '646 Patent by making, using and selling a method for performing IP telephony that offers PBX functionality over the Internet.

    Voxpath claims the defendants install and provide business-class call management features, including services to allow VoIP calls to traverse existing in-company data firewalls, services that connect multi-site company locations and remote employees with a single intra-company dialing plan and services that connect employees to a remote hub over a private hosted network featuring extension dialing, call transfer, call park and call pickup apart from external phone services.

    The plaintiff is seeking injunctive relief, damages, enhanced damages for willful infringement, costs, expenses, interest, attorneys' fees and other relief to which it may be entitled.

    Voxpath is represented by Daniel Perez of Dallas, David Pridham of Barrington, R.I., Andrew Spangler of Marshall and Patrick Anderson of Flint, Mich.

    The case has been assigned to U.S. District Judge Richard A. Schell.

    Case No. 4:08-cv-127-RAS

    Texarkana Division, Eastern District of Texas

    April 11

  • Intellectual Capital Holdings Ltd. vs. NEC Corp. of America et al

    Plaintiff ICHL is a Texas limited liability company with its principal place of business in Arlington. ICHL claims it owns the rights to U.S. Patent No. 4,884,631 for a Forced Air Heat Sink Apparatus issued Dec. 5, 1989.

    According to the plaintiff's complaint, the '631 Patent generally relates to a heat sink assembly used in computers, servers, game consoles and other consumer electronic products to aid in the cooling of semiconductors and other electronic components.

    The suit alleges that defendants NEC Corp., Sony Electronics, Sony Computer Entertainment and Lenovo have infringed the '631 Patent. Defendants' infringing products named in the suit include Sony 7742, 7732, RX450 and LX920 computer models; Sony PlayStation 2 gaming console; NEC Express 5800 Server and Lenovo computer model 3000 J series.

    "As a result of defendants' infringing conduct, defendants have damaged ICHL," the complaint states. "Defendants are liable to ICHL in an amount that adequately compensates ICHL for the infringement, which by law shall be no less than a reasonable royalty."

    The suit also alleges that the infringement by Sony and NEC has been willful and deliberate.

    ICHL is seeking compensatory damages, costs, interest, attorneys' fees and other relief. From Sony and NEC, the plaintiff is seeking three times the compensatory damages for their willful infringement.

    The Civil Cover Sheet attached to the original complaint states that the damages demanded are in excess of $1 million.

    Robert Garrey of the Roach Law Group PC in Dallas is representing the plaintiff.

    The case has been assigned to U.S. District Judge David Folsom.

    Case No. 5:08-cv-065-DF

    Tyler Division, Eastern District of Texas

    April 11

  • Third Dimension Semiconductor Inc. vs. Infineon Technologies North America Corp. et al

    Plaintiff Third Dimension Semiconductor (3D) is a Texas corporation that maintains its principal place of business in Tempe, Ariz.

    The patents-in-suit deal generally with power semiconductor products.

    3D claims it holds the rights to U.S. Patent No. 5,216,275 for Semiconductor Power Devices with Alternating Conductivity Type High-Voltage Breakdown Regions. 3D alleges that defendants Infineon Technologies North America Corp., Infineon Technologies AG and Infineon Technologies Holding North America Inc. have infringed the '275 Patent through semiconductor devices under the name "CoolMOS."

    The suit also states that 3D is the owner of U.S. Patent No. 6,635,906 for a Voltage Sustaining Layer with Opposite-Doped Islands for Semiconductor Power Devices. Infineon's CoolMOS products also infringe the '906 Patent, the plaintiff claims.

    The third patent named in the suit is U.S. Patent No. 6,936,867 for Semiconductor High-Voltage Devices. As with the '275 and '906 Patents, 3D alleges that the defendants' CoolMOS products embody the invention patented within the '867 Patent.

    3D is seeking injunctive relief, compensatory damages including lost profits and reasonable royalty, treble damages for willful infringement, interest, costs, attorneys' fees and other just and proper relief.

    Jeff Bragalone and other attorneys of Shore Chan Bragalone LLP in Dallas are representing the plaintiff, along with Carl Roth of the Roth Law Firm in Marshall.

    The case has been assigned to U.S. District Judge Leonard E. Davis.

    Case No. 6:08-cv-129-LED

  • More News