Mackall, Crounse & Moore, PLC has joined Dewitt Ross & Stevens S.C.

The newly formed DeWitt Mackall Crounse & Moore S.C. will provide clients with enhanced legal services
and efficiencies as well as access to more than 100 attorneys practicing in nearly 30 areas of
law in Wisconsin and Minnesota.

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Brian L. Stender

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Ralynn Thompson

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Brian is a partner and member of DeWitt’s Intellectual Property practice group.  His domestic and international practice focuses on securing and enforcing the intellectual property rights in all facets of intellectual property. This includes patent prosecution, trademark and copyright registrations and intellectual property litigation, as well as preparation of patentability, infringement, and invalidity analyses and opinions on behalf of his clients, assessment and management of intellectual property rights during merger and acquisition transactions, and negotiating and licensing of intellectual property.  His technical experience is in the areas of renewable energy, chemical, life sciences, biochemical, mechanical, and medical devices.

In addition to his private practice experience, he also worked as an in-house patent liaison for Phillips Plastics Corporation while attending law school, where he focused on patent prosecution and portfolio management while developing extensive knowledge in injection molding, insert molding and multi-shot processes. From his graduate degree research, Brian also has experience with small-scale pharmaceutical-derivative synthesis and characterization, aquatic photochemistry, time-resolved flash photolysis, and process development.

Representative Technology Experience

  • Renewable Energy
  • Green Fuel Technology
  • Plant-based Technology
  • Antimicrobials and related processes
  • Polymer Chemistry
  • Pharmaceuticals
  • Chemical formulation technologies
  • Biodegradable fiber-molded products
  • Carbon nanotube technologies
  • Electrochemical deposition compositions and processes
  • Coagulation agents and anticoagulants
  • CpG binding protein homologs for Prokaryotic DNA enriching
  • Ethanol and ethanol-byproduct processing
  • Fertilizer and cementitious compounds
  • Fischer-Tropsch catalysts
  • Immunological assays
  • Ion-exchange filter technology
  • Medical devices and medical device coatings
  • Mutein proteins for binding TNF receptors
  • Nanoscale green-fuel technology
  • Nutraceuticals
  • Oil extraction process in ethanol production
  • Pharmaceuticals
  • Processes for detecting chemical, biological and environmental analytes
  • Processes for removing impurities from gas streams
  • Petroleum processing

Notable Representations

  • Represented defendant in trademark/false advertising dispute through trial and appeal where plaintiff’s trademarks were invalidated with no liability for the client.
  • Extended intellectual property protection after patent rights had expired by asserting trade dress for a manufacturer and distributor of music chairs—settled with favorable terms for client during course of bench trial after defendant conceded infringement.Utilized success in the case and two additional trade dress cases to bolster registration of the trade dress as a federal trademark registration before the USPTO.
  • Represented defendant, a distributor of cooking accessories, in patent infringement case that settled before initiation of the discovery phase on favorable terms for the defendant.
  • Represented various defendants in architectural design copyright cases that settled before trial with favorable terms.
  • For defendants in a trademark litigation case, represented the plaintiff against multiple infringers who were not only infringing on client’s trademark, but also cybersquatting on confusingly similar marks—cases settled with defendants. transferring domain names to plaintiff, along with other terms favorable to client
  • Represented defendant accused of trademark infringement—case settled early in discovery phase with plaintiff transferring domain names to the defendant.


Articles | Presentations

  • “Patentability of Nature-Based Products Derived from Nature Sources,” South Dakota State University Lunch & Learn, Brookings, SD, April 2015
  • “Patent Marking in the 21st Century: Virtual Marking, Ideas on Intellectual Property Law,” August/September 2012
  • “Aqueous photochemistry of triclosan: Formation of 2,4-dichlorophenol, 2,8-dichlorodibenzo-p-dioxin and oligomerization products, Environmental Toxicology and Chemistry,” 2005, 24, 517-525. (
  • “Photochemical Fate of Pharmaceuticals in the Environment: Cimetidine and Ranitidine,Environmental Science and Technology,” 2003, 37, 3342-3350. (

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Get to know us

DeWitt LLP is one of the ten largest law firms based in Wisconsin, with an additional presence in Minnesota. It has more than 130 attorneys practicing in Madison, Greater Milwaukee, Green Bay and Minneapolis in over 30 legal practice areas, and has the experience to service clients of all scopes and sizes.


We are an active and proud member of Lexwork International, an association of mid-sized independent law firms in major cities located throughout the Americas, Europe and Asia and an active member of SCG Legal, an association of more than 140 independent law firms serving businesses in all 50 state capitals and major commercial centers around the world.


Best Lawyers 2013 – 2021
Super Lawyers 2021
Compass Award 2012
Top 100 Lawyers: National Trial Lawyers Association


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