Rhema Law Group

About Rhema Law Group

Rhema Law Group is an intellectual property and business law firm located at 1 Park Plaza, 6th Floor, in Irvine, California. The practice covers patents, trademarks, and copyrights alongside IP and business litigation, corporate law, franchise law, and a dedicated Amazon Seller Protection service for sellers navigating marketplace-specific policies and disputes. Trademark work is the broadest part of the offering, spanning clearance searches, applications, prosecution, monitoring, licensing, maintenance, oppositions and cancellations, infringement, litigation, and international filings.

The Irvine office is open 8:30 a.m. to 5:00 p.m. Pacific and takes inquiries by phone, email, and consultation request. Seven professionals are listed on the firm’s website: John D. Tran, Rosalind T. Ong, Robert G. Crownover, William L. Buus, Daniel X. Nguyen, Suzan N. Tran, and Joana A. Gunawan. The firm describes its attorneys as seasoned specialists in their chosen practice areas, notes that several hold advanced or technical degrees, and positions itself as carrying expertise beyond what is typical of a boutique firm.

Across 35 reviews and a 4.90 rating, customers return to a consistent set of strengths. Reviewers describe being walked through unfamiliar processes step by step, from trademark registration to utility patent prosecution, and repeatedly credit the firm with making complex filings feel seamless. Responsiveness and clear communication appear throughout the feedback, as do thoroughness, attention to detail, and explanations delivered in plain terms. John D. Tran is named in most reviews, with Rosalind Ong also cited frequently for her role on client matters.

Specific engagements described by reviewers include trademark registration for newly launched companies, utility patent filings, an Amazon APEX patent infringement action involving multiple patents and infringing listings, and a commercial dispute over unauthorized withdrawals that was escalated and resolved with a full refund. Several reviewers describe relationships that span years, including one client citing service since 2014 and another describing more than fifteen years of work across patents, trademarks, contract review, and negotiation.

Praise is also heavily concentrated on one or two named attorneys, offering limited visibility into the wider team.

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.