Professional Experience

Kent J. Sieffert is a founding Principal of Shumaker & Sieffert. He is a registered patent attorney specializing in complex electrical and software technologies. Prior to founding Shumaker and Sieffert, Kent was a patent attorney at the firms of Fish & Richardson and Schwegman, Lundberg, Woessner and Kluth. 

Kent's practice includes all facets of patent prosecution, strategic counseling on patent portfolio management and development, opinions, and presuit investigations. Kent works with a broad spectrum of companies nationally from established fortune 100 companies to dot com startups. His graduate research at the University of Michigan included the design of high-performance RISC-based microprocessors.

Prior to his career as a patent attorney, Kent worked as a Senior Design Engineer for Minnesota Mining and Manufacturing (3M) where he was project leader and principal software architect for several medical imaging products. As an engineer, Kent developed software systems and web-based solutions using Java, XML, C++, Pascal, LISP, CLOS, Fortran and several assembly languages. In addition, Kent is an inventor on several software patents.

Kent has been an adjunct Professor of Law at the University of Minnesota Law School since 2001, where he teaches courses on Patent Practice and Advanced Patent Practice. Minnesota Law and Politics magazine has identified Kent as a Minnesota Super Lawyer.

In the 2016 edition of the IAM 1000, The World's Leading Patent Professionals, Intellectual Asset Management (IAM) Magazine named Kent in its short list of recommended attorneys for patent prosecution in Minnesota.  

Publications