'''Greenberg & Lieberman''' is an international law firm based in Washington, DC specializing in intellectual property and litigation. The firm is founded in 1996 and it is registered with the United States Patent and Trademark Office.<ref>[http://www.aplegal.com/about.html www.aplegal.com]</ref> | '''Greenberg & Lieberman''' is an international law firm based in Washington, DC specializing in intellectual property and litigation. The firm is founded in 1996 and it is registered with the United States Patent and Trademark Office.<ref>[http://www.aplegal.com/about.html www.aplegal.com]</ref> |