matter in Molnlycke Health Care AB v. Dumex Medical Surgical, a notable case in Internet law. In 2000 he was involved in a trademark infringement matter in the National Jewish Defense League (JDL) v. Mordechai Levy case which ended in November 2002 when JDL chairman Irv Rubin died in suspicious circumstances in jail, and defended against copyright infringement in the Studio Martis, B.V. v. Joseph D. Wager Smith case. In 2002, Greenberg and Lieberman's involvement in the Ramsey v. Schutt, et al. in the Maryland State Circuit Court for Charles County was influential in changing the rule in Maryland pertaining to what is necessary in a contract to obviate liability. In 2003, Greenberg was involved in several UDRP or trademark infringement disputes such as Size, Inc. v. Future Media Architects, Jensen Research v. Future Media Architects, Internet Development Corp v. TitleSoft, Internet Development Corp v. Senetek, Quantum Software Systems Ltd v. Future Media Architects, and a copyright infringement case, Future Media Architects v. Corey Richardson. In 2004, the firm continued to represent Future Media Architects and Internet Development Corporation in a series of disputes over UDRP and trademark infringements and other matters including representing Future Media Architects against Cool, Inc., QNX, Capital Networks PTY Ltd, Punto Verde, Murat Yikilmaz and Hay Napa International, and representing Internet Development Corporation against B.S.A. Corporation at Maryland District Court, Freightliner and Lactel. In 2005, Greenberg was involved in the federal court and mediation in the Ariadne Genomics v. Stratagene California dispute. His firm was hired by Mastercard International Incorporated v. Priceless.com to settle a trademark matter. In 2006, Greenberg was involved in UDRP disputes such as Equifax, inc v. The Tidewinds Group, Inc., Marchex v. Name Development Corp. and Thomas Weisel Partners Group, Inc. v. Tom Weisel House of Entertainment. In 2007, Greenberg & Lieberman were hired by businessman Antonis Polemitis in a case against Ville de Paris, a Municipal Corporation of the city of Paris at the Virginia Eastern District Court involving the Lanham Act in which the client claimed tortious interference with contract and defamation. They also represented some major global firms in trademark matters such as Nike, Inc. v. Niyad Enterprise in California Central District Court, Microsoft v. Domain Source, Inc. and UDRP cases such as HSBC Finance Corp. v. Whois Privacy Protection Service, Inc.. In 2008, Greenberg was involved in a trademark/domain matter between Air China and Airchina.com and with