Thomas W. Leffert, President and founding shareholder of LJP, is a registered patent attorney practicing in the technology areas of semiconductor architecture and processing, electronic circuits and systems, industrial control systems and software, networking systems and software, medical device electronics and chemical compositions and processing, along with related client counseling, licensing and opinion matters.

Prior to LJP, Tom practiced at Minneapolis-based intellectual property law firm Schwegman, Lundberg, Woessner & Kluth, where he focused on patent preparation and prosecution, as well as related client counseling matters. He has also practiced at Minneapolis-based Friederichs Law Firm, where he focused primarily on intellectual property litigation. Tom has also served as vice president and general counsel at Empak Inc., a Colorado Springs-based supplier to the semiconductor and rotating memory disk industries.

Tom is licensed by the State of Minnesota as a Professional Engineer in both chemical and electrical engineering. He earned his bachelor's degree in chemical engineering from Iowa State University. He earned a second undergraduate degree, in electrical engineering, through the 3M Engineering Academic Program. He received his law degree from William Mitchell College of Law, where he served as editor of the William Mitchell Law Review. Tom also represented William Mitchell College of Law in the 1993 Giles Sutherland Rich Intellectual Property Moot Court Competition.

Tom is admitted to practice law in Minnesota and Colorado, and is a member of the Minnesota State Bar Association, the American Intellectual Property Law Association, the Minnesota Intellectual Property Law Association, and the Hennepin County Bar Association.