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About Me

An attorney with more than twenty-eight years’ experience in domestic and international trademark, copyright, licensing, unfair competition, anti-counterfeiting and mass media law, with a broad legal background, including active practice before state and federal administrative agencies, United States District Courts, United States Courts of Appeals, and the Supreme Court of the United States.


Photos and Videos

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Practice Areas


  1. Trademark Infringement: 30%
    29 years, 75 cases
  2. Trademark Application: 30%
    29 years, 1 thousand cases
  3. Copyright Infringement: 25%
    29 years, 10 cases
  4. Internet: 10%
    20 years, 150 cases
  5. Copyright Application: 5%
    29 years, 20 cases



Hourly ($300-350/hour), Contingent (30-40%), Fixed (Sometimes)

Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

1 total 

  • Matthew Lorin Kabak

    Greg is a tremendous advocate for his clients, leaving no stone unturned. His deep knowledge of IP and vast litigation experience make him an attorney you want on your side. I endorse this lawyer without reservation.


    Matthew Kabak Business Attorney
    Relationship: Worked together on matter

Contact Info

Gregory H. Guillot, PC

13727 Noel Road
Tower II, Suite 200
Dallas, TX, 75240


TXEligible To Practice In Texas 200409/19/2015
DCActive 199805/24/2015
LAEligible to practice law198609/03/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2015
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2014
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2013
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2012
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2011
AV-Preeminent RatingMartindale-Hubbell2010
Bar Register of Preeminent LawyersMartindale-Hubbell2010
Bar Register of Preeminent LawyersMartindale-Hubbell2009
Bar Register of Preeminent LawyersMartindale-Hubbell2008
Bar Register of Preeminent LawyersMartindale-Hubbell2007
Bar Register of Preeminent LawyersMartindale-Hubbell2006
Bar Register of Preeminent LawyersMartindale-Hubbell2005
Bar Register of Preeminent LawyersMartindale-Hubbell2004
Bar Register of Preeminent LawyersMartindale-Hubbell2003
Bar Register of Preeminent LawyersMartindale-Hubbell2002
Bar Register of Preeminent LawyersMartindale-Hubbell2001
Bar Register of Preeminent LawyersMartindale-Hubbell2000
Bar Register of Preeminent LawyersMartindale-Hubbell1999
Bar Register of Preeminent LawyersMartindale-Hubbell1998
Bar Register of Preeminent LawyersMartindale-Hubbell1995
Bar Register of Preeminent LawyersMartindale-Hubbell1994
Bar Register of Preeminent LawyersMartindale-Hubbell1993
The B.N.A. Law Student AwardThe Bureau of National Affairs, Inc.1986
Work Experience
TitleCompany NameDuration
PresidentGregory H. Guillot, PC2004 - Present
Of CounselHaynes and Boone, LLP2002 - 2003
PresidentGregory H. Guillot, Chartered1997 - 2002
PartnerGuillot & Gazala, LLP1995 - 1997
ShareholderMidlen & Guillot, Chartered1990 - 1995
AssociateJohn H. Midlen, Jr. Chartered1989 - 1990
AssociateHardy & Popham1986 - 1988
Law ClerkFawer, Brian, Hardy & Zatzkis1984 - 1986
Association NamePosition NameDuration
State Bar of TexasMember2004 - Present
Dallas Bar AssociationMember2004 - Present
District of Columbia BarMember1998 - Present
American Bar AssociationMember1997 - Present
American Intellectual Property Law AssociationMember1990 - 2010
Federal Communications Bar AssociationMember1990 - 2010
International Trademark AssociationMember1989 - 2011
Louisiana State Bar AssociationMember1986 - Present
Legal Cases
Case NameOutcome
Metro Broadcasting, Inc. v. Federal Communications Commission5-4 decision ruling for FCC
Union Pacific Railroad Company v. HuxtableCase settled
Corbello v. DeVito, et al.Active; Remanded following Ninth Circuit Appeal
See all Legal Cases 
School NameMajorDegreeGraduated
Tulane University Law SchoolLawJD - Juris Doctor1986
Vanderbilt UniversityPhilosophy, Political ScienceBA - Bachelor of Arts1983
Speaking Engagements
Conference NameTitleDate
Guest SpeakerUnderstanding Trademarks2005
National Telecommunications Law Moot Court CompetitionCompetition Judge and Lead Panelist in Discussion on the Constitutionality of the FCC's Minority and Female Preferences in Comparative Broadcast Application Proceedings1990