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State attorney guide

Trademark attorneys in California

Compare 47 attorneys across California, from highly rated practices to the complete statewide list.

Ranked by listed rating

Top picks in California

  1. No. 1

    Cohen IP Law Group, P.C.

    Beverly Hills, CA 4.9 out of 5 (105)

    Cohen IP Law Group, P.C.

    Strengths

    • Advertises searches, applications, office action responses and international trademark filings.
    • Services include oppositions, cancellations and ongoing registration maintenance.
    • The wider practice includes IP litigation, licensing and ecommerce matters.
    • Reviews praise explanations, patient support and attorney communication.

    Considerations

    • Cohen IP clients describe professional communication and understandable advice about patents and trademarks.
    • The written accounts praise application assistance rather than identifying a repeated dispute over follow-through or attorney explanations.
  2. No. 2

    Innovation Capital Law Group

    Irvine, CA 4.9 out of 5 (69)

    Innovation Capital Law Group is an Irvine-based patent and trademark law firm serving startups, inventors, and innovative companies with intellectual property and corporate legal services.

    Strengths

    • Repeated praise for attorney Vic Lin and team's patent and trademark expertise, clear explanations, and responsiveness.
    • Broad IP and business law coverage, including patents, trademarks, copyrights, international IP protection, licensing, corporate formation, and venture financings.
    • Startup and entrepreneur focus, with flat fees and PCT national phase cost estimates available.
    • Reviewers frequently cite timely updates, transparent or reasonable fees, and favorable outcomes in USPTO petitions, trademark disputes, and Amazon APEX matters.
    • Industry-specific experience across medical devices, life sciences, technology and software, electronics, consumer products, and other sectors.

    Considerations

    • One reviewer alleges overpromising and patent drafts requiring the client's corrections instead of the promised quality.
    • Other clients describe patent and trademark processes spanning years, with longer waits when expedited review was not selected.
  3. No. 3

    mjIP An Intellectual Property Firm

    Irvine, CA 4.9 out of 5 (27)

    mjIP is an Irvine-based intellectual property firm led by a USPTO-registered patent attorney, focused on patents and trademarks for biotech, pharmaceutical, dietary supplement, and related science-driven businesses.

    Strengths

    • Led by a USPTO-registered patent attorney with a biology background and prior Fortune 500 pharmaceutical in-house experience.
    • Specialized focus on patents and trademarks for biotech, pharmaceutical, dietary supplement, medical device, and university technology transfer matters.
    • Offers a free initial consultation and describes boutique, founder-led attention.
    • Reviewers frequently praise responsiveness, professionalism, clear explanations, and attention to detail.
    • Client feedback references successful patent, trademark, copyright, and infringement-related work, including long-term relationships.

    Considerations

    • MJIP clients commend efficient filings and patient explanations for people new to IP work rather than recurring communication problems.
    • Clients new to patent and trademark work describe patient, understandable explanations rather than recurring difficulties getting questions addressed.
  4. No. 4

    Rhema Law Group

    Irvine, CA 4.9 out of 5 (35)

    Irvine-based intellectual property and business law firm handling patents, trademarks, copyrights, IP litigation, corporate and franchise matters, and Amazon seller protection for clients ranging from individual inventors to established companies.

    Strengths

    • Broad intellectual property coverage spanning patents, trademarks, copyrights, and IP litigation, plus corporate, franchise, and Amazon seller matters under one roof
    • Reviewers consistently highlight clear, patient explanations that make unfamiliar patent and trademark processes easier to navigate
    • Strong marks for responsiveness and communication, with clients noting quick replies and proactive updates on filings and cases
    • Documented outcomes include trademark registrations, utility patents, a resolved Amazon APEX patent infringement action, and recovery of funds in a commercial dispute
    • Long-standing client relationships appear in the feedback, with some reviewers citing a decade or more of ongoing representation

    Considerations

    • Rhema clients describe prompt answers and progress updates rather than recurring difficulty reaching the attorneys.
    • Written accounts praise clear handling of patent and trademark procedures from filing through approval, without repeated follow-through complaints.
  5. No. 5

    Shimokaji IP

    Irvine, CA 4.9 out of 5 (41)

    Shimokaji IP is an Irvine-based intellectual property firm handling patents and trademarks for startups, inventors, and established companies, with a review record that consistently credits attorney Michael Shimokaji for responsiveness and clear guidance.

    Strengths

    • Repeatedly praised for fast, often same-day responses to questions by email and phone
    • Reviewers describe patient, plain-language explanations of patent and trademark procedures, particularly helpful to first-time filers
    • Handles a broad technical range according to feedback, including medical devices, software, mobile apps, and mechanical engineering
    • Offers a free initial consultation and is described in reviews as competitively priced relative to larger firms
    • Long-running repeat clients and referrals appear throughout the review history, suggesting durable working relationships

    Considerations

    • One reviewer alleges collected government fees were not paid and filings were incomplete; Shimokaji disputes the account, cites unpaid client invoices, and offers reimbursement.
    • Other clients describe quick replies outside normal hours and clear explanations for first-time inventors, contrasting with that filing dispute.

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