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About me

I am registered patent attorney located in Orange County California. I offer flat fee arrangements for many of my patent and trademark prosecution services.


I serve Orange County residents and residents of neighboring Los Angeles, San Diego, Riverside and San Bernardino counties.


In the same time, I also serve clients who found me online from allover US (e.g., New York, Montana, etc) and from foreign countries (e.g., Germany).


As a former entrepreneur, I can relate well to my clients' needs and I understand perfectly how difficult it is to build a successful business. Hence, I work diligently to ensure that my clients' intellectual property assets propel them faster toward success.



Languages spoken: Romanian, French, English

Photos and videos

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Practice areas


  1. Patent Application: 80%
    7 years, 120 cases
  2. Intellectual Property: 10%
    7 years, 3 cases
  3. Trademark Application: 10%
    9 years, 45 cases



Fixed (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

7 total 

Are you an attorney? Endorse this lawyer

  • Filemon Kevin Samson

    Attorney Marin Cionca manages his firm with the integrity and dedication to his clients. I endorse this lawyer.


    Filemon Samson Bankruptcy and debt Attorney
    Relationship: Fellow lawyer in community

  • Harriet Beth Alexson

    I have known Marin for the past year and have worked with him Orange County Bar Association’s activities. He is a registered patent attorney and his expertise is to assist inventors and businesses in the protection of intellectual property rights and assets.


    Harriet Alexson Business Attorney
    Relationship: Fellow lawyer in community

Contact info


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Southern California Rising Stars for Intellectual PropertySuper Lawyers2015
Best Oral AdvocateConcord Law School2005
Work experience
TitleCompany nameDuration
Patent AttorneyCionca Law Group P.C.2009 - Present
Association namePosition nameDuration
Orange County Patent Law AssociationMember2009 - Present
Orange County Bar Association, Intellectual Property and Technology Law SectionMember2008 - Present
State Bar of CaliforniaMember2007 - Present
Orange County Bar Association, Intellectual Property and Technology Law SectionCo-chair2012 - 2012
Orange County Bar Association, Intellectual Property and Technology Law SectionVice Chair2011 - 2011
Orange County Bar Association - Education CommitteeMember2010 - 2011
Legal cases
Case nameOutcome
Water conserving domestic hot water purge valvePATENT GRANTED
Drinking competition devicePatent Granted
Method and system to harmonically tune (just intonation tuning) a digital / electric piano in real timePATENT GRANTED
See all legal cases 
Publication nameTitleDate
Orange County Lawyer Magazine200 Years of American Patent Law Tradition - Gone!2012
Orange County Lawyer MagazineThe Pitfalls of a Provisional Application for Patent2009
School nameMajorDegreeGraduated
Concord Law SchoolLawJD - Juris Doctor2006
Transylvania UniversityEngineeringBS - Bachelor of Science1991
Speaking engagements
Conference nameTitleDate
Orange County Bar Association, Solo Practitioner/Small Firm SectionEffective Online Advertising and Related IP Protection Considerations2012
Orange County Bar Association - IP/T Section-Monthly MeetingAre Business Method Patents on Life Support in Light of Bilski?2010