Logan B. Christenson is an IP prosecution attorney, and a member of the patent prosecution group at Workman Nydegger. Clients rely on his experience to assist them with obtaining international and U.S. patents. His advanced degree in biological engineering is coupled with his extensive experience in the following technologies and designs:

  • Agricultural technology
  • Medical device design
  • Bioreactor and bioprocess design
  • Bioreactor control system programming and design
  • Recombinant microorganism design, and related molecular biological techniques
  • Biofuels production
  • Environmental remediation, and wastewater treatment

Clients find that the combination of Logan’s academic-based knowledge and his real-world experience offers unique insights into their legal business planning. Being raised on a family farm, he has unique experience that he leverages to serve clients’ intellectual property needs in the agricultural technology space. His versatile background also provides an exceptional understanding of industry sectors that work at the intersection of multiple technology areas, including the medical device and biomanufacturing spaces, where biology and chemistry intersect with mechanical engineering, materials science, and computer technology.


  • U.S. and International Prosecution of IP
  • U.S. and International Patent Prosecution
  • Agricultural Technology
  • Biotechnology, Biochemical, Chemical, Pharmaceutical, and Life Sciences
  • Mechanical Devices and Mechanical Engineering
  • Medical Devices
  • Computer Software and Hardware


  • J.D., University of Virginia School of Law, 2014
  • M.S., Biological Engineering, Utah State University, 2011
  • B.S., summa cum laude, Biological Engineering, Utah State University, 2009


  • Registered Patent Agent, U.S. Patent and Trademark Office
  • Utah State Bar

Speaking Engagements

Speaking Engagements
  • Expert Panelist, 2019 Translational Medicine Symposium “Partnerships for Propelling Clinical Translation,” University of Utah, February 2019
  • Guest Lecturer, Spring 2019, Capstone Design Series, Utah State University Department of Biological Engineering
  • Expert Panelist, BioUtah IP Breakout Session, Utah Life Sciences Summit, November 2018
  • IP Workshop Presenter, Bench to Bedside, University of Utah Center for Medical Innovation, January 2019
  • Presenter, 2018 Hunstman Venture Forum, “Protecting Intellectual Property Assets: What Entrepreneurs Should Know,” Utah State University Jon M. Huntsman School of Business
  • Expert Panelist, 2018 Translational Medicine Symposium, “Partnerships for Propelling Clinical Translation,” University of Utah, February 2018
  • Guest Lecturer, 2018-Present, Center for Entrepreneurship, Utah State University Jon M. Huntsman School of Business
  • Guest Lecturer, 2016-Present, IP Survey- Biomedical Engineering, University of Utah



Production and harvesting of microalgae for wastewater treatment, biofuels, and bioproducts. Biotechnology Advances (2011); 29(6): 686-702

Rotating algal biofilm reactor and spool harvester for wastewater treatment with biofuels by-products. Biotechnology and Bioengineering (2012); 109(7): 1674-1684

  • The Written Description Requirement for Negative Claim Limitations

    A “negative claim limitation” is language recited in a patent claim that speaks to the absence of a feature, as...
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  • Patent Trends in AgTech

    Global agricultural productivity more than tripled between 1960 and 2015.[1] Despite such impressive growth, given current trends, global hunger will...
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  • Making Amendments to Range Limitations in Patent Claims

    A patent claim that includes a numerical range may be rejected based on prior art that discloses the range. For...
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  • Using Numerical Ranges to Strengthen your Patent Application

    Many inventions, particularly those in the materials science, chemical, and biotech arts, include features described using numerical ranges. For example:...
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  • Is combining prior art references intuitive? Another reminder from the Federal Circuit regarding the PTO’s burden in supporting obviousness rejections

    In a recent decision, the Federal Circuit has reminded the Patent Trial and Appeal Board (PTAB) that when rejecting claims...
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Kim Fullmer


  • 5 years intellectual property experience
  • 7 years legal experience


  • A.S., Utah Valley University
  • Patent Paralegal Certificate, IPlegalED

Contact Information
Email  kfullmer@wnlaw.com
Phone  801-533-9800

Tyler Eller


  • 15 years at Workman Nydegger
  • Patent and Trademark Filings, U.S. and foreign
  • Management of Patent Portfolios


  • B.A., English, University of Utah, 2009

Contact Information
Email  teller@wnlaw.com
Phone  801-533-9800

View his full bio here.