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About me

Managing Partner of Cislo & Thomas LLP


Education: B.S., Systems Engineering (Electro-mechanical-computer), University of California at Los Angeles (UCLA),


1981; J.D., Loyola Law School, Los Angeles, California, 1986.


Previously with Pretty, Schroeder, Brueggemann & Clark of Los Angeles, CA.


Admissions:  United States Supreme Court; Court of Appeals for the Federal Court (CAFC); Ninth Circuit Federal Court of Appeals;  Federal and State Courts of California; United States Patent and Trademark Office; District of Columbia, Washington D.C., Texas U.S. District Court, Illinois U.S. District Court


Associations: Santa Monica Bar Association Board of Trustees and Past President; Los Angeles Intellectual Property Law Association;  Federal Bar Association Board of Directors; Los Angeles Copyright Society; Association of Business Trial Lawyers; American Bar Association; Malibu La Costa Board of Directors; President of Malibu Winding Way Homeowners Association Board of Directors; Malibu MPC Nursery School Board of Directors; Younglife of Malibu Board of Directors. 


Areas of Practice: Specializing in  patent, copyright, trademark clearance, filing, licensing and litigation matters for a wide variety of complex technologies. Expertise in startup ventures requiring patent, copyright,  trademark, trade secret, unfair competition clearance, protection, enforcement, and licensing.  Extensive experience in the high-tech, direct marketing, infomercial and multilevel marketing industries.



Personal Interests: Enjoys jogging, skiing, whitewater rafting, ocean kayaking, body surfing, and his wife of twenty years and their four children.


Photos and videos

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Practice areas


  1. Licensing: 20%
  2. Trademark Application: 20%
  3. Copyright Application: 20%
  4. Patent Application: 20%
  5. Litigation: 20%


Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Amy Elizabeth Martinez

    I endorse this lawyer.


    Amy Martinez General practice Attorney
    Relationship: Fellow lawyer in community

  • Philip Thomas Virga

    I endorse this IP attorney without hesitation as I have known him for more than 20 years and began my law career under his guidance and mentoring which has proved over the decades to be invaluable. He is one of the most highly skilled and experienced lawyers I know wherein I refer most if not all of my clients' IP litigation matters to Dan and his firm at Cislo and Thomas.


    Philip Virga Patent application Attorney
    Relationship: Worked for lawyer

Contact info

Cislo & Thomas, LLP

12100 Wilshire Blvd
Suite 1700
Los Angeles, CA, 90025

1332 Anacapa Street
Suite 120
Santa Barbara, CA, 93101

2829 Townsgate Road
Suite 330
Westlake Village, CA, 91361



DCActive 200607/06/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Super LawyerSouthern California Super Lawyers2014
Most Influential Lawyers: Digital Media and E-Commerce LawLos Angeles Business Journal2014
Super LawyerSouthern California Super Lawyers2013
AV Peer Review RatingMartindale-Hubbell2013
Work experience
TitleCompany nameDuration
Managing PartnerCislo & Thomas, LLP1988 - Present
Association namePosition nameDuration
Ninth Circuit Judicial ConferenceLawyer Representative2014 - Present
Los Angeles Intellectual Property Law AssociationN/A2000 - Present
Santa Monica Bar AssociationPresidentN/A
Federal Bar AssociationN/AN/A
Los Angeles Copyright SocietyN/AN/A
Association of Business Trial Lawyers (Los Angeles chapter)N/AN/A
American Bar AssociationN/AN/A
Legal cases
Case nameOutcome
International Seaway v. Walgreen Co. et al.Summary judgment of invalidity granted
Amini Innovation Corp. v. JS Imports and Designer Furniture Warehouse, 2007 U.S. Dist. LEXIS 43758 (C.D. Cal. May 21, 2007)Defendants' motion denied
Sensitech v. Time N' TemperatureAppeal court invalidated patent, parties settled
See all legal cases 
Publication nameTitleDate
Santa Clara Computer and High Technology Law JournalWhy International Inventors Might Want to Consider Filing Their First Patent Application at the United States Patent Office & the Convergence of Patent Harmonization and eCommerce2014
Los Angeles Daily JournalReal World Molecular Biology Conflicts with the Supreme Court's Recent Decision on Patentable cDNA2013
School nameMajorDegreeGraduated
Loyola University School of LawLawJD - Juris Doctor1986
University of California - Los AngelesSystems Engineering (Electro-Mechanical-Computer)BS - Bachelor of Science1981
Speaking engagements
Conference nameTitleDate
UCLA Alumni AssociationProvisional Patents2013