McKool Smith, PC is a law firm based in Dallas, Texas

Dallas, Texas

Dallas is the third-largest city in Texas and the ninth-largest in the United States. The Dallas-Fort Worth Metroplex is the largest metropolitan area in the South and fourth-largest metropolitan area in the United States...

 founded in 1991 by attorneys Mike McKool and Phil Smith. The 125-lawyer firm has become notable primarily because of major patent lawsuit verdicts won against Microsoft Corporation.

Notable cases

• i4i v. Microsoft: McKool Smith represents the plaintiff, i4i
  I4i
  i4i is a small technology company in Toronto, Canada founded by Michel Vulpe in 1993.- Patent dispute :In 1994, Michel Vulpe and Stephen Owens filed for a patent for an invention that makes it possible for computer users to use regular word processors as XML /SGML editors...
  
  , in ongoing patent infringement
  Patent infringement
  Patent infringement is the commission of a prohibited act with respect to a patented invention without permission from the patent holder. Permission may typically be granted in the form of a license. The definition of patent infringement may vary by jurisdiction, but it typically includes using or...
  
   actions against Microsoft
  Microsoft
  Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions...
  
  . A jury in the Eastern District of Texas
  United States District Court for the Eastern District of Texas
  The United States District Court for the Eastern District of Texas is the Federal district court with jurisdiction over the eastern part of Texas and is a part of the Fifth Circuit. The court's headquarters are in Tyler, Texas and has five subdivision offices in Beaumont, Lufkin, Marshall,...
  
   awarded i4i $290 million, which included an injunction
  Injunction
  An injunction is an equitable remedy in the form of a court order that requires a party to do or refrain from doing certain acts. A party that fails to comply with an injunction faces criminal or civil penalties and may have to pay damages or accept sanctions...
  
   against sales of Microsoft Word
  Microsoft Word
  Microsoft Word is a word processor designed by Microsoft. It was first released in 1983 under the name Multi-Tool Word for Xenix systems. Subsequent versions were later written for several other platforms including IBM PCs running DOS , the Apple Macintosh , the AT&T Unix PC , Atari ST , SCO UNIX,...
  
   2003 and 2007 versions. Microsoft appealed the judgment and lost.
• VirnetX v. Microsoft: McKool Smith represented the plaintiff, VirnetX, in patent infringement actions against Microsoft. The first action resulted in an award of $105 million for VirnetX with a subsequent action filed. In May 2010 Microsoft settled all actions for $200 million.

Recognition

In 2010, Managing Intellectual Property magazine recognized McKool Smith as one of the top four patent litigation firms in the United States.