Drumometer

McAfee has filed patent infringement lawsuits in Chicago against Guitar Center, Ahead Products, Inc. and Cherub Technology Inc., who sell a similar drum stroke counting device, and Yamaha Corporation of America, who has incorporated a drum stroke counting feature in its popular line of DTX electronic drum kits.

Craig left Drumometer in 2007 to continue a career in engineering but still owns the first Drumometer prototype affectionately known as Frankenstein.

Dowell has filed three patent infringement lawsuits for McAfee in the United States District Court for the Northern District of Illinois, the first against Guitar Center and Yamaha on October 27, 2015 (15-cv-9555) and two more against Ahead Products, Inc. (15-cv-10395) and Cherub Technology Inc. (15-cv-10403) on November 18, 2015.

Musical genres such as death metal, country, jazz, and screamo have battled for dominance in the various categories.

• By George Broyer "The Rise of Speed Drumming", The Drumometer - Retrieved in 2005.
• By Blabbermouth.net "International Speed Competition", NAMM 2006 - Retrieved in 2006.
• US Patent Office Patent #6,545,207 Archived 2018-02-18 at the Wayback Machine
• Musicians Friend