The Professionals at Westman, Champlin & Koehler
Our professionals are members of the Minnesota Intellectual Property Law Association and federal, state, and county bar associations, as well as national professional organizations.
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David D. Brush
Patent & Trademark Attorney, Shareholder David D. Brush is experienced in patent preparation, prosecution, enforcement and licensing in the electronic, semiconductor, software, medical and mechanical areas. Read more -
Judson K. Champlin
Patent & Trademark Attorney, Shareholder Judson K. Champlin has experience with mechanical and electrical patents including computer hardware and software, microelectronic fabrication and design, and communications. Read more -
Barbara J. Clark
Patent & Trademark Attorney, Of Counsel Barbara J. Clark is a registered patent attorney residing in Ames, Iowa, with 25 years of experience in providing IP-related services in chemical engineering, food science, mechanical engineering, materials, semiconductor, and chemical technologies, with particular expertise in clean technologies. Read more 
Leanne Taveggia Farrell
Patent & Trademark Attorney, Officer Leanne Taveggia Farrell assists clients in the preparation and prosecution of patent applications in diverse technology areas within the mechanical, electrical and software disciplines. Read more
Hallie A. Finucane
Patent & Trademark Attorney, Officer Hallie A. Finucane has extensive experience in patent preparation and prosecution in the medical device, mechanical, chemical and biotechnology fields. Read more
Visala C. Goswitz
Patent Agent Visala C. Goswitz has over 15 years of experience in the preparation and prosecution of patent applications in areas of Biotechnology, Chemistry and Medical Devices, including Immunology, Molecular Biology, Microbiology and Food Science. Read more-
Trevor L. Haney
Patent & Trademark Attorney Trevor L. Haney holds a degree in Physics from Purdue University and a Juris Doctor (magna cum laude) from Mitchell Hamline School of Law. He practices patent preparation and prosecution in the mechanical and electrical disciplines, including semiconductors and computer hardware. Read more 
Peter J. Ims
Patent & Trademark Attorney, Officer Peter J. Ims is experienced in patent preparation and prosecution in the chemical and mechanical fields. He also has experience in trademark prosecution and enforcement. Read more
Pamela J. Jeppson
Patent & Trademark Attorney, Associate Pamela J. Jeppson is experienced in patent preparation, prosecution, enforcement and licensing in the electronic, semiconductor, optical, software, automotive, medical and mechanical areas. She also focuses on Paris Convention and PCT National Phase filings in the U.S. for law firms and clients residing in other countries. Read more
Brian D. Kaul
Patent & Trademark Attorney, Shareholder Brian D. Kaul is a registered patent attorney with experience preparing and prosecuting patents in a wide variety of technical areas including electrical, mechanical and software fields. Read more
Steven M. Koehler
Patent & Trademark Attorney, Shareholder Steven M. Koehler has over 22 years of experience as a patent and trademark attorney representing clients in diverse technology areas including computer hardware and software, robotic devices and systems, mechanical testing equipment, internal combustion engines and other automotive systems. Read more
John D. Veldhuis-Kroeze
Patent & Trademark Attorney, Shareholder John D. Veldhuis-Kroeze has extensive experience in patent preparation, prosecution and enforcement in the areas of electronics, seminconductor design, computer hardware and software, medical devices, hydraulics and construction equipment design. Read more
Mai D. Lauer
Patent & Trademark Attorney Mai D. Lauer has worked in the Heating, Ventilation and Air Conditioning industry and has more than a decade of experience procuring intellectual property protection, particularly for mechanical inventions. Read more
Ted M. Magee
Patent & Trademark Attorney, President, Shareholder Ted Magee has drafted and prosecuted patents in a wide range of electrical and mechanical disciplines including channel encoding/decoding, speech recognition and natural language systems. Read more
Daniel J. Polglaze
Patent & Trademark Attorney Daniel J. Polglaze is a registered patent attorney with more than 20 years of experience preparing and prosecuting U.S. and international patent applications in the electrical, electro-mechanical, and mechanical arts. Read more
Amanda M. Prose
Patent & Trademark Attorney Amanda M. Prose has experience in the preparation and prosecution of patent applications within the chemical and mechanical disciplines. She also counsels clients on patentability, patent validity, product clearance searches, and patent infringement matters. Read more
Alan G. Rego
Patent & Trademark Attorney Alan G. Rego has extensive experience in the preparation and prosecution of patent applications in areas of technology that include electrical, electronics, software, control methods, e-commerce, business methods and mechanical arts. Read more
Z. Peter Sawicki
Patent & Trademark Attorney, Shareholder Z. Peter Sawicki has over 30 years experience in all aspects of patent preparation, prosecution, licensing, rendering opinions and enforcement in the chemical and mechanical areas in the United States and other countries. Read more
James L. Young
Patent & Trademark Attorney, Shareholder James L. Young has over three decades of experience in preparing, prosecuting, licensing, rendering opinions and enforcing patents related to the mechanical arts. Read more
Austen Zuege
Patent & Trademark Attorney, Officer Austen Zuege focuses his practice on intellectual property (IP) law in both transactional and litigation settings, including patent, trademark, copyright, trade secret and domain name dispute matters. Read more