Marton Ribera Schumann & Chang

Marton Ribera Schumann & Chang LLP (MRSC) is a California-based intellectual property litigation boutique with its primary office in San Francisco. The firm describes itself as a small, collaborative team focused on high-technology clients, handling complex patent, trademark, trade secret, and copyright disputes in federal and state courts nationwide. The firm's partners bring experience from prior roles at Am Law 100 firms, indicating a background in large law firm environments.

MRSC's IP litigation practice specializes in a diverse range of high-technology sectors. Attorneys at the firm possess expertise in areas such as electronics, semiconductors, networking, telecommunications, e-commerce, software, biotechnology, consumer electronics, robotics, health and medical devices, autonomous vehicle systems, and data storage. The firm has handled matters involving point-of-sale devices, GPS-enabled devices, hand-held communication devices, encryption, wearables, online 3D virtual tours, and mobile enterprise software.

The firm has experience representing clients on both the plaintiff and defendant sides of patent disputes, as reflected by its tracked appearances. While capable of prosecuting cases, the firm demonstrates a notable emphasis on defending operating companies, with partner Ryan J. Marton having a strong record of achieving early victories and defense jury verdicts for defendants. The firm's "OUR WORK" portfolio highlights successes for defendants like Redfin, where it obtained a jury verdict of non-infringement and invalidity, and Verifone, securing summary judgment of non-infringement.

Marton Ribera Schumann & Chang LLP also maintains an active practice before the Patent Trial and Appeal Board (PTAB), successfully representing both patent owners and petitioners in inter partes review (IPR) proceedings across various technical fields. Key partners are regularly involved in PTAB litigation, with Carolyn Chang having appeared pro hac vice in multiple IPR proceedings, and Hector J. Ribera having represented clients before the Board of Patent Appeals and Interferences and the PTAB.

Leading the firm's patent litigation efforts are name partners C.J. Alice Chuang, Carolyn Chang, Ryan J. Marton, and Hector J. Ribera. Carolyn Chang and Hector J. Ribera have both been recognized as "Super Lawyers" in Intellectual Property Litigation in Northern California, with Carolyn Chang also selected as a "Rising Star" in previous years. These attorneys bring extensive experience in managing complex technology disputes, including jury trials, summary judgments, and appeals before the U.S. Court of Appeals for the Federal Circuit.