The Dan Johnson Law Group specializes in high stakes, complex litigation.

Mr. Johnson has practiced for more than 40 years and tried dozens of cases to verdict or settlement during trial. He has taken thousands of depositions over his career, and handled a wide range of legal matters including antitrust, trade secrets, patents, licensing and contract disputes. Mr. Johnson has represented both plaintiffs and defendants, consistently obtaining great results for his clients using skills and strategies that only come from thousands of hours in trial. Mr. Johnson is closely involved in every client relationship, and the other members of the Dan Johnson Law Group bring their own extensive litigation and trial experience to the firm.


Patent Litigation + Intellectual Property Litigation + Antitrust & Competition + Privacy & Cybersecurity Litigation + Regulation & Investigation


Dan Johnson is Repeatedly Recognized as a Top Trial Lawyer

Numerous organizations have recognized Mr. Johnson for his career achievements. He has won several “top ten verdict” awards, CLAY awards and SuperLawyer acknowledgements.


Johnson’s most recent trial results: Fujifilm v. Motorola Mobility

In April 2015, Mr. Johnson was the lead trial lawyer in an eight-day jury trial for patent infringement. The jury awarded Mr. Johnson’s client Fujifilm $10.25 million against Motorola Mobility for infringing Fujifilm’s patents.


Ipsilium LLC v. Cisco Systems, Inc. (Northern District of California)

On December 18, 2017 DJLG filed a complaint against Cisco, Inc. for willful infringement of two patents on behalf of our client Ipsilium LLC.  Ipsilium was founded with the inventor of the patents, a well-known researcher who has developed many improvements in computer speed and efficiency.  Based on an application filed in 1999, the patents disclose radically faster devices for processing packets in data networks.  The complaint alleges that Cisco adopted Ipsilium’s patented technology in 2012, to counter competitors who were then selling faster, less expensive network switch devices.  Such “low-latency” data switches are particularly valued by High-Frequency Traders and other financial institutions looking for the fastest access to trading and pricing data.  The complaint alleges that Cisco’s has enabled Cisco to regain a competitive position in that market segment, one Cisco has called “a key vertical” with recent sales estimated at $3.5 billion per year and growing.   Ipsilium also claims that Cisco was aware of the Ipsilium patents while developing and launching its products, but chose to appropriate Ipsilium’s technology with no attempt to license the patents.  Ipsilium is seeking a reasonable royalty on Cisco’s sales as well as enhanced damages and its attorneys’ fees for Cisco’s willful infringement.  […]