Douglas M. Kubehl

Practice Group Chair - IP Litigation (Firmwide) Partner

Doug Kubehl Photo

Dallas

P: +1.214.953.6486 F: +1.214.661.4486
  • Multinational telecommunications equipment provider – received jury verdict of infringement by competitor with respect to seven patents directed to network transformation technology
  • Multinational telecommunications equipment and National telecommunications service providers – defense of patent infringement claim in EDTX involving LTE wireless network and equipment, a summary judgment of noninfringement was granted
  • Multinational telecommunications equipment and National telecommunications service providers – defense of patent infringement claim in Delaware involving LTE wireless network and equipment, a summary judgment of noninfringement and invalidity was granted
  • National telecommunications service provider - defense of patent infringement claim in EDTX involving LTE wireless network resulting in jury verdict of no infringement and patent invalidity
  • National telecommunications service provider - defense of patent infringement claim in NDCA involving LTE wireless network resulting in summary judgment of noninfringement
  • National telecommunications service provider - defense of patent infringement claim in EDTX involving LTE wireless network resulting in summary judgment of noninfringement
  • National telecommunications service provider – defense of patent infringement claims against the largest wireless service providers, where Mr. Kubehl argued claim construction on behalf of all independently represented defendants and obtained a stipulation of noninfringement for all defendants at the trial court, then argued the case on behalf of all defendants at the Court of Appeals for the Federal Circuit and obtained a summary affirmance of the noninfringement judgment
  • National telecommunications service provider – defense of patent infringement claim involving messaging resulting in summary judgment of noninfringement, followed by finding of patent unenforceability after trial
  • Multinational network equipment provider – defense of patent infringement case involving multiple patents directed to test techniques for integrated circuits resulting in stipulation of non-infringement by plaintiff
  • National computer manufacturer – defense of patent infringement case involving computer touch screens resulting in stipulation of noninfringement by plaintiff
  • Multinational telecommunications equipment provider – defense of patent infringement case involving computer remote control software; summary judgment of noninfringement was granted
  • National call center software company – defense of a patent infringement claim asserted by a competitor on a patent involving telecommunications software; summary judgment of noninfringement was granted
  • Multinational Internet security company – defense of patent infringement claim involving database encryption; summary judgment of invalidity was granted
  • National shipping equipment manufacturer – defense of patent infringement claim involving airport loading bridges; summary judgment of noninfringement was granted
  • National defense contractor – assertion of patents related to construction equipment receiving summary judgment of infringement and finding of patent validity and damages after trial
  • National educational software company – defense of a patent infringement claim involving educational software; settlement was reached immediately after favorable claim construction ruling
  • Multinational telecommunications equipment manufacturer – defense of multiple patent lawsuit involving LTE wireless technology
  • Multiple national wireless service providers – defense of multiple patent lawsuit involving LTE wireless technology
  • National defense contractor – defense of a patent infringement claim involving optical components; settlement was reached immediately after favorable Markman hearing
  • National defense contractor – assertion of patents related to construction equipment; damages awarded after two week trial
  • Multinational Internet security company – defense of patent infringement claim involving database encryption
  • Multinational Internet security company – defense of patent infringement claim involving email scanning
  • Multinational telecommunications equipment provider – defense of patent infringement case involving data streaming
  • National sales lead management service provider – defense of patent infringement case involving sales of leads on credit products
  • Multinational telecommunications equipment provider – defense of patent infringement case involving Femtocell technology
  • Multinational telecommunications equipment provider – defense of patent infringement case involving internet encryption technology
  • National telecommunications equipment provider – defense of patent infringement case involving Voice Over IP Gateway technology
  • Multinational telecommunications equipment provider – defense of a patent infringement case involving internet routing and wireless communication
  • National telecommunications service provider – defense of patent infringement claim involving anti-fraud measures for cellular phones
  • Multinational wireless services provider – defense of multiple patent infringement cases involving wireless communications
  • Multinational computer, electronics, and network equipment provider – defense of a patent infringement claim relating to plasma display technology
  • Large semiconductor manufacturer – arbitration in the International Chamber of Commerce (ICC) involving defense of a patent infringement claim over semiconductor manufacturing process and devices
  • National sales lead management service provider – defense of patent infringement case involving lead management software and webpage design
  • National educational software provider – defense of patent infringement case involving interactive educational software
  • Educational software company – patent infringement suit against a competitor
  • Telecommunications service provider – technical contract dispute involving telecommunications switching software
  • Telecommunications equipment provider – suit for patent infringement and trade secret misappropriation
  • $100 million optical networking company – development and management of an extensive patent portfolio