William P. Lehner

William P. Lehner, Attorney-At-Law


(740) 660-4230

William handles divorce, child custody, criminal defense, small business litigation, and trademarks. He attends court on an almost daily basis. He travels to courts all over Central Ohio and regularly attends the Madison County Municipal Court. William has a gate pass for the Tri-County Regional Jail in Mechanicsburg, so he can visit any inmate there 24/7.

William represents businesses in commercial transactions, intellectual property matters, and internet and unfair competition disputes. He advises startups on entity structure, formation, governance and financing, including business and commercial document preparation.  William also advises on business certification matters at the local, state and national levels, and he provides support during the application process.

William especially loves to work with clients to create a branding strategy and a strong portfolio of trademarks that adds value to their businesses. William helps businesses protect, enforce, and monetize their intellectual property assets. William practices before the Trademark Trial and Appeals Board. He prevents the importation of counterfeit goods by registering trademarks with the U.S. Customs and Border Protection. He has recovered domain names from cybersquatters. He advises on licensing, purchasing, transfers and commercialization of IP.

William started his career as a Patent Examiner where he was an expert on three-dimensional computer graphics and graphical user interfaces. He then joined and a patent boutique to do patent clearance searches. Next, he worked at two other large law firms prosecuting trademark and sending demand letters for trademark and copyright infringements. William founded Lehner Law LLC in 2020 because traditional law firms are inefficient and he wanted a free hand to innovate. He is also Of Counsel at the Brehm Law Group.

William loves solving problems for others. In his spare time, he enjoys kayaking and hiking with his dog.


Protected a major toy manufacturer’s famous trademark on a doll by helping to shut down pornography websites that traded off of the doll’s likeness.

Worked for a major car manufacturer to prevent the importation of counterfeit airbags by registering trademarks with the US. Customs and Border Protection.

Helped a major retailer to rebrand generic trademarks to look as similar as possible to premium brands.


Capital University Law School, Juris Doctor, 2019

  • Honors: Treasurer, Federalist Society for Law & Public Policy Studies
  • Honors: AAJ Mock Trial Advocacy Competition
  • Honors: Herbert Wechsler National Criminal Moot Court Competition
  • Honors: General Litigation Clinic

James Madison University, BS in Computer Science, 2003


Ohio Supreme Court

United States District Court, Southern District of Ohio


Rocket Lawyer On Call® Attorney

International Trademark Association

Ohio Association of Criminal Defense Lawyers

Ohio State Bar Association

Licking County Bar Association

Madison County Bar Association

Columbus Bar Association

Columbus Young Professional Club


Volunteer Attorney, Legal Aid Society of Columbus

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