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William Parrish: 19 Straight Years of Best Lawyers Recognition Across Four Practice Areas

Being named to Best Lawyers once is a genuine credential. Being named continuously since 2007 — 19 consecutive years — across four distinct practice areas simultaneously (Commercial Litigation, Litigation-Intellectual Property, Litigation-Patent, and Mediation) is a different order of peer recognition. William “Bill” Parrish has practiced litigation and mediation in Austin long enough, and across enough practice areas, that a firm named after his general dispute-resolution practice now carries his own name.

Mixed-Representation Disclosure

William Parrish handles complex commercial and intellectual property litigation for both plaintiffs and defendants. His professional biography states directly that he “handles Intellectual Property Litigation and other Complex Commercial Litigation for both plaintiffs and defendants,” with experience across “patents, trademarks, trade secrets, copyright, unfair competition, fraud, covenants not to compete, breach of contract and other matters.” Awesome Attorneys discloses this explicitly, consistent with its standard practice for every Business & Corporate Litigation profile.

Origin and Background

William M. Parrish earned his J.D. from the University of Texas School of Law and has practiced law for 47 years. He has been continuously recognized by Best Lawyers since 2007 in Commercial Litigation, Litigation-Intellectual Property, Litigation-Patent, and Mediation — a rare combination of both litigation and formal mediation recognition in the same practitioner. He has practiced at multiple firms over his career, including as a shareholder at DiNovo Price and an attorney at Hardy Parrish Yang, before founding Parrish Dispute Resolution PLLC. He also serves as a neutral mediator, helping parties resolve disputes outside of litigation entirely — a distinct professional role from his advocacy work as counsel.

Practice Concentration

Parrish’s practice covers complex commercial litigation and intellectual property litigation, including disputes involving patents, trademarks, trade secrets, copyright, unfair competition, fraud, non-compete covenants, and breach of contract, in both trial and mediation contexts. He is admitted to practice before the Fifth Circuit Court of Appeals, the U.S. Court of Appeals for the Federal Circuit (the specialized appellate court that hears patent appeals), and multiple Texas federal district courts. That Federal Circuit admission is a specific, meaningful credential for patent litigation work, since the Federal Circuit hears all U.S. patent appeals regardless of the trial court’s location. For a broader comparison of Austin litigation firms, see our Business & Corporate Litigation directory.

Notable Work / Track Record

As is typical for commercial and IP litigation matters, many outcomes are resolved through settlement or mediation with terms that aren’t always publicly disclosed, and Awesome Attorneys did not identify a published table of verdict or settlement figures for this attorney. Awesome Attorneys is disclosing that gap rather than substituting marketing language for it. What is independently verifiable is an unusually long, continuous, multi-category peer recognition record: 19 consecutive years of Best Lawyers recognition (2007–2026) across four distinct practice areas, a scale of sustained peer regard that few Austin litigation attorneys match.

Client Voice

One Avvo client review specifically describes a patent case outcome: the client wrote that Parrish “was instrumental in working and favorably resolving a large intellectual property – patent case.” Avvo’s licensing record shows no misconduct findings for this attorney. Awesome Attorneys notes the publicly available client review sample for this attorney is small, which is typical for an attorney whose client base is primarily businesses and institutions in complex commercial and IP disputes rather than individual consumers, but is worth disclosing directly as a limitation on independent verification.

Beyond the Courtroom

Parrish’s dual role as both litigator and neutral mediator — recognized by Best Lawyers in both categories simultaneously — means he brings settlement-oriented perspective to cases he litigates and litigation-tested judgment to cases he mediates, a combination that isn’t common among attorneys who work exclusively on one side of that divide.

Recognition for This Austin Business Litigation Attorney

Peer-reviewed and third-party credentials: 19 consecutive years (2007–2026) of Best Lawyers recognition across Commercial Litigation, Litigation-Intellectual Property, Litigation-Patent, and Mediation — all peer-nominated, “Purely Peer Review” distinctions rather than self-submitted awards. Awesome Attorneys did not identify Texas Board of Legal Specialization certification documented for this attorney and notes that directly, since the Best Lawyers recognition here is independently substantial regardless.

Texas Legal Backdrop

Patent litigation — a core focus of Parrish’s practice — is governed by federal law exclusively; patent infringement claims can only be brought in federal district court, and any appeal goes specifically to the Federal Circuit rather than a regional circuit court, which is why Parrish’s Federal Circuit admission is a meaningfully specific credential rather than a general appellate qualification. Trade secret claims in Texas can be brought under either the Texas Uniform Trade Secrets Act (Texas Civil Practice and Remedies Code § 134A) or the federal Defend Trade Secrets Act, and choosing which framework (or both) to pursue can affect available remedies and where the case can be filed. None of this is legal advice; a specific patent, trademark, or trade secret matter should be evaluated by a licensed attorney with relevant IP litigation experience based on the actual facts and jurisdiction involved.

Awesome Attorneys Assessment

Parrish’s clearest, most specific differentiator is the sheer duration and breadth of his peer recognition: 19 consecutive years across four practice areas is a rare combination, reinforced by Federal Circuit admission that specifically matters for the patent litigation component of his practice. The honest trade-off is that the publicly available client review sample is thin — appropriate for an attorney whose clients are primarily businesses in complex commercial disputes rather than individual consumers who post consumer reviews, but still a genuine limitation on independent verification for a prospective client doing their own research. For a genuinely complex commercial or intellectual property dispute — particularly one involving patents, where Federal Circuit-specific experience matters — that depth and duration of peer recognition is a strong basis for a shortlist. For a routine commercial dispute without IP or patent dimensions, a generalist commercial litigator may be a more proportionate and cost-effective choice.

Methodology and Sourcing

This profile was researched from William M. Parrish’s Best Lawyers, State Bar of Texas, Avvo, and Justia attorney profiles, Parrish Dispute Resolution PLLC’s Best Lawyers firm profile, and an independent biography via Cornell’s Legal Information Institute lawyer directory documenting his professional history at Hardy Parrish Yang and DiNovo Price. The client quote is reproduced from a publicly posted, attributed Avvo review.

Publisher Disclosure and Independence Notice

Awesome Attorneys is an independent legal directory and editorial publication. This profile was not paid for, commissioned, or reviewed by William M. Parrish or Parrish Dispute Resolution PLLC prior to publication. Awesome Attorneys may in the future offer sponsored placement products to attorneys and firms, including this one, but sponsorship has no bearing on the editorial content, inclusion, or findings of this profile.