About William F. Lang IV

Since 1998, I have protected the ideas, inventions, and commercial identities of my clients through patents, trademarks, copyrights, and trade secrets. I hold degrees in both Electrical Engineering and Industrial Engineering, providing me with the technical expertise to understand the details of your inventions. I have several years of big firm and boutique firm experience including experience with one of the largest law firms in the world and one of the oldest boutique patent law firms in the United States. I founded Lang Patent Law in 2007.

William F. Lang IV sitting at desk

With Lang Patent Law now in its second decade, I have been trusted by a wide variety of clients, including individual inventors, startup companies, established research and development companies, manufacturers of various sizes, and other innovators. I serve local clients in the greater Pittsburgh area as well as national clients.

Your inventions, know-how, and reputation are important to you and your business. I can ensure that your intellectual assets receive the best possible protection.

Lang Patent Law building sign

Signed Patent

My Education:

  • JD with honors, University of Arkansas, 1997
  • Law Review Member
  • BS, Industrial Engineering, Pennsylvania State University, 1992
  • BSE, Magna Cum Laude, concentration in Electrical Engineering, Geneva College, 2010

My Bar Admissions:

  • United States Supreme Court
  • United States Court of Appeals for the Third Circuit
  • United States Court of Appeals for the Federal Circuit
  • United States District Court for the Eastern District of Pennsylvania
  • United States District Court for the Western District of Pennsylvania
  • Pennsylvania
  • United States Patent and Trademark Office

I have also published articles in various professional journals, including the following:

  • I provided information for, and was quoted in the article, Courtney Linder, "Hungry to get in the game, but it's hard to score a deal," Pittsburgh Post-Gazette, January 20, 2019, page C1. The same article appeared online under the title, "A retired engineer patented his own game, but thinks he may have been gamed by a marketing pitch," January 21, 2019, Read Article.
  • Inequitable Conduct May Apply to Post-Filing Data, THE NATIONAL LAW JOURNAL, June 16, 2003, at S3, S6.
  • Internet Metatags: The Hidden Liability within Hidden Text, SMART BUSINESS PITTSBURGH, June 2003, at 12.
  • Hidden Liability within Hidden Text: Internet Metatags, LAWYERS JOURNAL, February 21, 2003, at 8.  The Internet has changed since this article was published, as explained on my Internet Trademarks page.
  • Provisional Patent Applications: The New “Poor Man’s Patent?” Techburgher, Pittsburgh Technology Council, July 9, 2012. Read Updated Article Here.

About Kristin A. Lang

Kristin Lang is an Intellectual Property Paralegal and Office Manager with Lang Patent Law LLC. She holds a Bachelor's degree from Geneva College and also has a General Certificate in Paralegal Studies from Duquesne University. She was inducted into the Duquesne University Chapter of Lambda Epsilon Chi, a National Honor Society in Paralegal/Legal Assistant Studies. Prior to joining Lang Patent Law, Kristin has worked for the University of Pittsburgh School of Medicine, Geneva College, and Legal Aid of Southeastern Pennsylvania.

You can email Kristin here.

Kristin a Lang