Cashman Law Firm, PLLC

About Cashman Law Firm, PLLC

Cashman Law Firm, PLLC is a Houston-based intellectual property practice led by Robert Z. Cashman, an attorney licensed in New York, Texas, and before the US Patent & Trademark Office. The firm describes itself as a patent, copyright litigation, and IP law firm serving inventors, internet users, and small business professionals. Its work spans patent and trademark filings, copyright matters, and federal court defense in cases involving copyright infringement, patent infringement, and DMCA rules.

A major part of the practice is copyright litigation defense, particularly for clients accused of downloading, streaming, or viewing copyrighted movies, videos, or music without a license. The firm states that these matters often remain in pre-trial stages, including the John Doe stage, pre-trial discovery, out-of-court negotiations, and resolutions. It also assists inventors with filing patents and, once a patent is obtained, with licensing and litigation needs. Trademark services include helping businesses choose a name that is not already in use and protecting names, logos, and brands from copying or unauthorized website use.

Cashman Law Firm differentiates itself from a traditional patent firm through what it describes as an eye toward litigation. The firm emphasizes that patents, trademarks, and copyrights are valuable only when they can be protected if copied, infringed, or imported by another party. It also positions trademarks and copyrights as core company assets and offers to help build an intellectual property framework for businesses. Robert Cashman has practiced law since 2007, authors the TorrentLawyer blog, and has more than a decade of service to clients.

Across 44 reviews with a 4.90 rating, customers repeatedly praise the firm for clear explanations, responsiveness, and strategic guidance. Many describe initial consultations as detailed and no-cost, including situations where the firm ultimately referred the matter to an attorney in the client’s home state. Reviewers commonly mention copyright infringement notices, ISP subpoenas, John Doe lawsuits, and copyright troll defense. The firm’s plain-English approach and willingness to discuss options without pressure are recurring themes. Limitations also appear: the website labels phone consultations as limited availability, and one reviewer reported a scheduled appointment being canceled shortly beforehand because the firm was not taking new clients. Some reviewers ultimately retained other counsel due to location or cost, while still acknowledging the guidance they received.