David S. Aman

Tonkon Torp LLP
1600 Pioneer Tower
888 SW Fifth Avenue
Portland, Oregon 97204

PHONE: 503.802.2053
EMAIL: david.aman@tonkon.com
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David

David maintains a business litigation and intellectual property practice. Since 2008, David has been named one of Oregon's top attorneys in the area of intellectual property law in Oregon's annual Super Lawyers publication. David is also the chair of the firm's Intellectual Property practice group.

David has extensive experience representing plaintiffs and defendants in cases involving patent infringement, trademark infringement, copyright infringement, trade secrets, non-competition provisions and other business disputes. Representative of the efforts David has made for his clients are the following: 


  • Obtaining a unanimous jury verdict of $2.5 million in his clients' favor in an internet defamation case.
  • Obtaining a jury verdict in favor of a software engineering company for breach of a non-competition agreement and breaches of fiduciary duties against a former employee and for joint liability against a competitor, following a five-day jury trial.
  • Obtaining a substantial award of attorneys’ fees for a client accused of infringing a competitor's patent, after the competitor dismissed its lawsuit following an adverse ruling in a claims construction hearing.
  • Successfully defending a company accused of misappropriating a competitor's trade secrets, including obtaining a judgment dismissing the competitor's claims following a two-week trial.
  • Representing a health supplement company sued for patent infringement in successfully invalidating the patent at issue; the result was upheld on appeal to the United States Court of Appeals for the Federal Circuit.
  • Obtaining a unanimous jury verdict in favor of a mortgage lender client accused of fraud.


David regularly advises clients on business issues involving the protection and enforcement of intellectual property rights, and the defense of infringement charges made by others. David also has substantial experience advising clients on antitrust issues, particularly those arising out of the licensing, acquisition and enforcement of intellectual property rights.

David's recent speaking engagements and presentations include:


  • Copyright Law Year in Review, sponsored by the Oregon State Bar Intellectual Property Section (March 2010) - co-presenter on hot topics in copyright law at annual all-day seminar sponsored by IP section.
  • Litigating the Trade Secrets Case,sponsored by the Multnomah Bar Association (Sep. 2009) - co-presenter at a 2-hour seminar, providing tips, traps, and strategies in trade secret and related litigation.
  • Cars, Dolls and Video Games: Copyright Matters at All Ages, sponsored by the Oregon State Bar Intellectual Property Section (March 2009) - co-presenter on hot topics in copyright law at annual all-day seminar sponsored by IP section.
  • Protecting Trade Secrets and Competitive Advantages from Departing Employees, part of half-day seminar sponsored by Tonkon Torp LLP (February 2009) - presentation to business owners, managers and in-house counsel concerning best practices for protecting trade secrets and other competitive advantages.


Aman, David S            

David maintains a business litigation and intellectual property practice. Since 2008, David has been named one of Oregon's top attorneys in the area of intellectual property law in Oregon's annual Super Lawyers publication. David is also the chair of the firm's Intellectual Property practice group.

David has extensive experience representing plaintiffs and defendants in cases involving patent infringement, trademark infringement, copyright infringement, trade secrets, non-competition provisions and other business disputes. Representative of the efforts David has made for his clients are the following: 


  • Obtaining a unanimous jury verdict of $2.5 million in his clients' favor in an internet defamation case.
  • Obtaining a jury verdict in favor of a software engineering company for breach of a non-competition agreement and breaches of fiduciary duties against a former employee and for joint liability against a competitor, following a five-day jury trial.
  • Obtaining a substantial award of attorneys’ fees for a client accused of infringing a competitor's patent, after the competitor dismissed its lawsuit following an adverse ruling in a claims construction hearing.
  • Successfully defending a company accused of misappropriating a competitor's trade secrets, including obtaining a judgment dismissing the competitor's claims following a two-week trial.
  • Representing a health supplement company sued for patent infringement in successfully invalidating the patent at issue; the result was upheld on appeal to the United States Court of Appeals for the Federal Circuit.
  • Obtaining a unanimous jury verdict in favor of a mortgage lender client accused of fraud.


David regularly advises clients on business issues involving the protection and enforcement of intellectual property rights, and the defense of infringement charges made by others. David also has substantial experience advising clients on antitrust issues, particularly those arising out of the licensing, acquisition and enforcement of intellectual property rights.

David's recent speaking engagements and presentations include:


  • Copyright Law Year in Review, sponsored by the Oregon State Bar Intellectual Property Section (March 2010) - co-presenter on hot topics in copyright law at annual all-day seminar sponsored by IP section.
  • Litigating the Trade Secrets Case,sponsored by the Multnomah Bar Association (Sep. 2009) - co-presenter at a 2-hour seminar, providing tips, traps, and strategies in trade secret and related litigation.
  • Cars, Dolls and Video Games: Copyright Matters at All Ages, sponsored by the Oregon State Bar Intellectual Property Section (March 2009) - co-presenter on hot topics in copyright law at annual all-day seminar sponsored by IP section.
  • Protecting Trade Secrets and Competitive Advantages from Departing Employees, part of half-day seminar sponsored by Tonkon Torp LLP (February 2009) - presentation to business owners, managers and in-house counsel concerning best practices for protecting trade secrets and other competitive advantages.


Aman, David S            

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  • Co-Author of 2005-2006 and 2006-2007 Annual Report of American Bar Association Intellectual Property Law Section, Trade Secrets and Interference with Contracts Subcommittee 
  • Co-Author of Personal Jurisdiction In A Foreign Forum: Where Will Your Website Take You? The Litigation Journal, 2001 
  • Co-Author of Oregon Chapter in ABA Section of Antitrust Law, State Antitrust Practices and Statutes (2d ed 1999) 
  • Who Gets the Last Word? The Evolving Role of Judge and Jury in Punitive Damages Cases. The Litigation Journal, 1998 

  • Copyright Law Year in Review, sponsored by the Oregon State Bar Intellectual Property Section (March 2010)- co-presenter on hot topics in copyright law at annual all-day seminar sponsored by IP section
  • Litigating the Trade Secrets Case, sponsored by the Multnomah Bar Association (Sep. 2009)- co-presenter at a 2-hour seminar, providing tips, traps and strategies in trade secret and related litigation
  • Cars, Dolls and Video Games: Copyright Matters at All Ages, sponsored by the Oregon State Bar Intellectual Property Section (March 2009)- co-presenter on hot topics in copyright law at annual all-day seminar sponsored by IP section 
  • Protecting Trade Secrets and Competitive Advantages from Departing Employees, part of half-day seminar sponsored by Tonkon Torp LLP (February 2009)- presentation to business owners, managers and in-house counsel concerning best practices for protecting trade secrets and other competitive advantages 
  • Electronic Discovery, sponsored by the American Bar Association, Intellectual Property Section (April 2008) - facilitated roundtable discussion on electronic discovery and related attorney-client privilege issues, particularly in context of intellectual property litigation. 
  • Litigating Antitrust Claims, sponsored by the Oregon State Bar Antitrust and Trade Regulation Section (June 2006) - panel presentation concerning litigation issues in hypothetical antitrust/patent case
  • Return of the Slider Case, sponsored by the Oregon State Bar Antitrust and Trade Regulation Section (October 2006) - presentation involving mock appellate argument on the crime-fraud exception to the attorney-client privilege in a hypothetical antitrust/patent case 

Oregon State Bar Intellectual Property Section
Executive Committee Member

Oregon State Bar Antitrust, Trade Regulation, and Unfair Business Practice Section
Former Member

Marathon Education Partners
Founding Partner

Southeast Legal Clinic
Firm Coordinator

City Club of Portland
Chair of Ballot Measure Study Committee (Fall 2008)

Jefferson High School
Mock Trial Coach (2003-2005)

In addition to his work in the courtroom, in 2007 and 2009 David participated in the Annual LAF-OFF Comedy Competition (sponsored by the Campaign for Equal Justice), in which Oregon attorneys volunteer to perform stand-up comedy routines as part of the Campaign's fundraising efforts. David was named co-winner of the King of Comedy award given for the best stand-up performance in 2007.