Protecting the new, now.®

Howison & Arnott Patent Attorneys John Arnott Keith Harden Andrew Graham Steven Greenfield Edward Jorgenson Brian Walker Gregory Howison James Arnott

Howison & Arnott, L.L.P. is a law firm practicing exclusively in the area of intellectual property, including patents, trademarks, copyrights and unfair competition.

The firm’s attorneys have expertise in all areas of patent, trademark and copyright law.

Areas of Practice


  • Prosecution
  • Appeals
  • Reexam/Reissue
  • Opinion Work/Support


  • Prosecution
  • Appeals
  • TTAB Proceedings
  • Opinion Work/Support


Unfair Competition

In The News

February, 2017

Howison & Arnott Attorney Brian D. Walker has been awarded…  read more

February, 2017

Attorney Greg Howison has been awarded…  read more

January, 2017

Greg Howison has been honored as a Texas Super Lawyer®read more

Featured Articles

Recent Patent Case Increases Likelihood of Intervening Rights from Re-examination

A recent ruling in the U.S. Federal Circuit addresses how patent reexamination proceedings may affect related patent infringement litigation. The case is likely to have significant impact…
read more

Contact H&A


Dallas - (972) 479-0462

Dallas - (972) 479-0464

Office Address
Lincoln Centre II
5420 LBJ Freeway, Ste 660
Dallas, TX 75240-2318