IP - Patents in Minnesota
33 South Sixth Street,, Suite 4540, Minneapolis, 55402
According to the Patent and Trademark Office, there are 41,800 patent lawyers in the U.S. So why choose Christensen Fonder Dardi?
The reason is simple: We have built a global reputation for providing creative, effective solutions to clients filing new patents, protecting existing patents, managing copyright and IP portfolios, and all of their other intellectual property issues, opportunities, and concerns that businesses and individuals face today.
All our lawyers have undergraduate or graduate degrees in science, engineering, technology or other technical areas, and our staff professionals have decades of experience working on patent and trademark matters. Many have worked in corporate legal departments during their career and understand the business implications of the patent and intellectual property work we do for you.
We provide you with in-depth expertise in:
- U.S. and international patent preparation and prosecution
- Patent opinions
- Post-grant patent proceedings
- Due diligence and portfolio management
- Copyright registration
- Intellectual property licensing
- Intellectual property litigation
Doug Christensen is a registered patent attorney and has been a licensed attorney in Minnesota since 1985. Doug is involved in various aspects of intellectual property including client counseling, litigation, and patent and trademark prosecution. Doug has prosecuted hundreds of patents in a variety of fields including mechanical, electrical, medical devices, optics, semiconductor fabrication technologies, plastic injection molding technologies, imaging technologies, and drilling technologies. He was formerly a named partner at Patterson Thuente, Christensen, Pedersen, P.A. and Palmatier, Sjoquist, Voigt, and Christensen, P.A. and a founding partner at Christensen Fonder P.A.. Christensen Fonder P.A. merged with Dardi & Herbert, PLLC in 2017 to form Christensen Fonder Dardi P.A..
Prior to law school, Doug had significant mechanical design experience and worked as a drilling engineer in the oil/gas field in Texas and Louisiana. In addition to prosecuting hundreds of patents, Doug has substantial litigation experience in intellectual property and product liability cases, including a substantial number of jury trials and arbitrations.
Doug’s clients greatly appreciate his inventor/engineer interviews where alternate embodiments of inventions from the anticipated commercial embodiments are envisioned and developed for inclusion in the patent applications, thereby discouraging or precluding design-arounds by competitors. His technical abilities and litigation experience are very helpful in counseling his clients on designing around competitors’ patents and patent infringement risk assessment.
Doug’s pastimes include technically related activities. Doug has owned, maintained, and repaired numerous cars and recreational vehicles, including motorcycles, jet skis, atvs, boats, and snowmobiles. Doug has personally finished several basements and enjoys being the handyman. He has had his amateur radio operator license and built his own “home brew” equipment. Doug enjoys golf, skiing, supporting his three kids in sports/activities, and family time at the cabin.Show more +