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William F Lang

William F Lang IV

Practice areas:

Patent Application, Trademark Application, Trademark Infringement, Copyright Application, Copyright Infringement… more 

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

Licensed since 2000

  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

5 total 

  • No photo

    Bill is a very competent attorney who has integrity and ethics. I previously worked with Bill at a prior law firm and I have kept in touch with him ever since. He is a master of his craft.


    Lee Kim Patent Application Attorney
    Relationship: Co-worker

  • Michael Charles Doland

    Sometimes one Avvo answer is enough. The answer of Mr. Lang was not only accurate and analytic, it was so customized to the needs of the Avvo asker as to convey considerable value. These are all qualities that every client would look for when hiring an attorney.


    Michael Doland Intellectual Property Attorney
    Relationship: Fellow lawyer in community

Contact Info

Lang Patent Law LLC

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


TXInactive 199805/02/2015
ARVoluntary Inactive199705/21/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
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