Skip to main content

William F Lang IV

About me

In addition to my intellectual property law practice, I have volunteered with Christian Legal Clinics of Philadelphia from January 2006 to June 2007, and have volunteered with Christian Legal Aid of Pittsburgh since July 2007.


Practice areas


  1. Patent Application: 60%
    18 years
  2. Trademark Infringement: 10%
    16 years
  3. Trademark Application: 10%
    15 years
  4. Intellectual Property: 5%
    18 years
  5. Other: 15%
  6. More 


Payment types:

Cash, Check, Credit card

Attorney endorsements

9 total 

Are you an attorney? Endorse this lawyer

  • Daniel Nathan Ballard

    I've read nearly a hundred of Attorney Lang's responses to Avvo questions. Without exception, his responses are legally sound, insightful, wise and -- most important -- business savvy. I strongly endorse him and would not hesitate to recommend him to anyone seeking intellectual property advice.


    Daniel Ballard Intellectual Property Attorney
    Relationship: Fellow lawyer in community

  • Hanno Ingbert Rittner

    Bill is the consummate patent attorney whom I hold in highest regard for his progress and professional success - which I watched grow first hand. I first met Bill as a law firm associate where I supervised his always meticulous work - because of that attention to detail, he also gets the big picture, and translates those details into meaningful, common sense help for clients. He understands the importance of every step of the legal process as well as how it fits into a client's business; as a further testament to both his character and professional judgment, Bill never lets a detail slide if he feels he does not fully understand its import. Since working with Bill, my legal practice focus evolved to Trademarks exclusively, and so I can without hesitation say that should I need a patent application prepared I would trust Bill with all mine. On a personal note, I always thanked him for introducing me to the enjoyment of shooting skeet. Bill's an all around guy and family man.


    Hanno Rittner Intellectual Property Attorney
    Relationship: Supervised lawyer

Contact info

Lang Patent Law LLC

Fourth Street Professional Building
640 Fourth Street
Beaver, PA, 15009


TXInactive 199810/19/2015
ARVoluntary Inactive199710/30/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Preeminent 4.6 out of 5Martindale-Hubbell2015
Charles Thomas Pearson ScholarshipUniversity of Arkansas School of Law1995
Work experience
TitleCompany nameDuration
OwnerLang Patent Law LLC2007 - Present
Patent attorneyDLA Piper US LLP2006 - 2007
Patent AttorneyEckert Seamans Cherin & Mellott2000 - 2006
Patent attorneyPaul & Paul1999 - 2000
Patent attorneyLitman Law Offices, Ltd.1998 - 1999
Association namePosition nameDuration
Beaver County Bar AssociationN/A2007 - Present
Christian Legal SocietyN/A2001 - Present
Pennsylvania Bar AssociationMember2000 - Present
American Intellectual Property Law AssociationMember1999 - Present
Legal cases
Case nameOutcome
Binge Responsibly LLC v. Power Hour LLCOur opposition was sustained, and Power Hour was not registered, a win for us.
See all legal cases 
Publication nameTitleDate
Continuing Legal Education Seminar publicationIntellectual Property Overview for Non-Intellectual Property Practitioners2011
National Law JournalInequitable Conduct May Apply to Post-Filing Data2003
Smart Business PittsburghInternet Metatags: The Hidden Liability within Hidden Text2003
National Law JournalWashington Redskins Gain Coup Over Service Mark Foes2003
Lawyers Journal (ACBA)Internet Metatags: The Hidden Liability within Hidden Text2003
School nameMajorDegreeGraduated
Geneva CollegeConcentration in Electrical EngineeringBSE2010
University of Arkansas, Fayetteville, Leflar Law CenterLawJD - Juris Doctor1997
Pennsylvania State University, University Park (main campus)Industrial EngineeringBS - Bachelor of Science1992
Speaking engagements
Conference nameTitleDate
Entrepreneurship classIntellectual Property Overview2014
Entrepreneurship classIntellectual Property Overview2013
Breakfast ClubIntellectual Property Issues Faced by Business Owners2011
Beaver County Bar AssociationIntellectual Property Overview for Non-Intellectual Property Practitioners2011