Doug Christensen is a Partner with Christensen Fonder Dardi Herbert PLLC in Minneapolis. He 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.