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About me

You'll have a hard time finding a better engineer to be your lawyer (or a better lawyer to do engineering work for you, if that's what you need!)  I live for the thrill of figuring out how, whether it's "how to get a transistor to do what you want," or "how to convince the judge of my client's position."  My background is obviously good for patent work, but I consider my legal skills to be just another tool to be used when appropriate.  You know what they say: "If the only tool you have is a hammer, every problem looks like a thumb!"  Not every problem can be solved by a contract or a lawsuit, but almost every problem can be solved.  My goal is to solve my clients' problems in the most efficient and economical manner.


If you've got a run-of-the-mill problem, take it to a run-of-the-mill lawyer.  But if you've got a problem that has your regular attorney stumped, give me a call.  If it's really a tough one, you'll make my day!


Languages spoken: Japanese

Photos and videos

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Practice areas


  1. Intellectual Property: 66%
    12 years
  2. Business: 34%
    9 years



Hourly ($225-325/hour), Fixed (sometimes), Free consultation (30 minutes)

Payment types:

Cash, Check

Attorney endorsements

5 total 

Are you an attorney? Endorse this lawyer

  • Joseph Abraham Bahgat

    Dave is a terrific guy, and one of the most competent attorneys I've had the pleasure of working with. Dave's knowledge of substantive copyright law is excellent, but what sets him apart is how well versed he is in the tendencies and temperaments of the judges in his district. Good lawyers stay on top of all of their own cases, but great lawyers go beyond that, aspiring to stay on top of all the cases that have the potential to affect their entire practices. Dave is a great lawyer.


    Joseph Bahgat Internet Attorney
    Relationship: Worked together on matter

  • Hovanes Margarian

    I endorse this lawyer.


    Hovanes Margarian Consumer protection Attorney
    Relationship: Fellow lawyer in community

Contact info

Mersenne Law LLP

9600 S.W. Oak Street
Suite 500
Tigard, OR, 97223


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
RemediesComputer Assisted Legal Education2003
Work experience
TitleCompany nameDuration
Patent AttorneyMersenne Law LLC2009 - Present
AssociateBlakely, Sokoloff, Taylor & Zafman2004 - 2007
Association namePosition nameDuration
Multnomah Bar AssociationMember2009 - Present
Oregon State Bar, Solo & Small Firms SectionBoard Member2009 - Present
Legal cases
Case nameOutcome
Adaptive entropy coding compression output formatsPatent U.S.7,605,721 Granted
See all legal cases 
School nameMajorDegreeGraduated
Southwestern University School of LawLawJD - Juris Doctor2003
Johns Hopkins UniversityElectrical EngineeringBS - Bachelor of Science1985
Speaking engagements
Conference nameTitleDate
OTBC Lunch TalkBad Patent!2010