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David L. De Bruin, Partner
- 312.596.5804
- dldebruin@michaelbest.com
- www.michaelbest.com
De Bruin is a partner in our IP Litigation Practice Group who practices out of our Chicago and Milwaukee offices. His practice is devoted to patent litigation at both the trial and appellate levels and intellectual property opinions and counseling. He has also served as an arbitrator and a Markman expert. He is a member of the bars of the States of Illinois and Wisconsin, the U.S. Supreme Court, the United States Court of Appeals for the Federal Circuit, the United States Court of Appeals for the Seventh Circuit, of federal district courts and of the Patent and Trademark Office. He has argued numerous patent cases before the Federal Circuit Court of Appeals. While rooted in the Midwest, Mr. De Bruin has litigated cases on both coasts and represented clients from around the country and abroad.
- Michael Best & Friedrich LLP
Articles in the National Law Review database by David L. De Bruin:
- Pay Attention: ITC Exclusion Orders May Block Your Imports If You Don’t (Posted On Wed, 2012-06-27 16:05)
- Trade Commission Likely to Play Growing Role in U.S. Renewable Energy (Posted On Fri, 2011-10-28 18:00)
- Supreme Court Upholds “Clear and Convincing” Standard of Proof for Patent Invalidity While Suggesting Juries Be Instructed on the Weight of the Evidence (Posted On Thu, 2011-06-16 00:10)
- Supreme Court Upholds Inventor's Ownership of Patent Rights Under the Bayh-Dole Act (Posted On Wed, 2011-06-15 13:23)
- Turning a Blind Eye to Critical Facts leads to Induced Infringement Under 35 U.S.C. § 271(b) (Posted On Thu, 2011-06-02 10:42)
- Federal Circuit Ruling Tightens Standard For Inequitable Conduct (Posted On Thu, 2011-05-26 18:09)
- A Sputnik Moment for Renewable Energy or Another Failed Launch? (Posted On Tue, 2011-02-08 02:56)
- Supreme Court to Review Whether University Owns Patent Under Bayh-Dole Act (Posted On Fri, 2010-11-05 10:50)
- Supreme Court Strikes Business Method Claim as Seeking to Patent an Abstract Idea (Posted On Fri, 2010-07-02 11:48)
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Recent Contributions to the National Law Review
Womble Carlyle Sandridge & Rice, PLLC
Drinker Biddle & Reath LLP
Andrews Kurth LLP
Giordano, Halleran & Ciesla, P.C.
Morgan, Lewis & Bockius LLP
Drinker Biddle & Reath LLP
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Schwegman, Lundberg & Woessner, P.A.
Greenberg Traurig, LLP
Katten Muchin Rosenman LLP
Drinker Biddle & Reath LLP
Giordano, Halleran & Ciesla, P.C.
Morgan, Lewis & Bockius LLP
Greenberg Traurig, LLP
Michael Best & Friedrich LLP
Sheppard, Mullin, Richter & Hampton LLP
McBrayer, McGinnis, Leslie and Kirkland, PLLC
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.






