About Us

counsel to the Innovative

About Tsircou Law

Tsircou Law is a Calabasas-based intellectual property law firm that provides patent, copyright, trademark, and IP portfolio development services to individuals, entrepreneurs, new space businesses, deep tech startups, and others in the greater Los Angeles metropolitan area. From space technology and industrial machinery to fines apparel and sippy cups, we collaborate with clients to monetize their ideas, protect their intellectual property, and help them achieve their business objectives. We are proud to partner with a diverse group of business innovators.

Our services include:

  • Patent and trademark prosecution
  • Intellectual property litigation
  • Intellectual property portfolio development
  • Patent infringement and validity opinions
  • Right to use evaluations
  • Patent avoidance designs
  • Licensing of intellectual property assets

Contact our firm to schedule a free consultation with one of our Calabasas intellectual property attorneys at Tsircou Law.

  • Kyriacos  Tsircou Photo
    Kyriacos Tsircou Founder

    Kyri Tsircou brings his technical expertise and experience in the Air Force, working for one of the largest law firms in the country, and his business acumen to provide cutting edge representation in intellectual ...

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Our Reviews
  • My experiences with Tsircou Law have without a doubt been exceptional.

    I have been an extremely happy and satisfied client with everything that Kyri Tsircou has done for me and my businesses. He was incredibly helpful in guiding me through myriad hoops to obtain patents on one of my sports inventions.

    - Ronald L. Gertsch, M. D.
  • I think Kyri is an excellent patent lawyer and he has my highest recommendation.

    Kyri came highly recommended and I sent him an e-mail query to gauge his interest. From Kyri’s first response to our subsequent phone calls and meetings, I have been impressed by how knowledgeable, accessible and thorough he is.

    - Beth Corets – President
  • Tsircou Law has been a tremendous asset for Outdoor Technology.

    The personal attention and breadth of knowledge that Kyri brings to the table in Law, Engineering and general business acumen is consistent and greatly appreciated.

    - Caro Krissman – President

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