Expert Witness

Below is a history of Dave Howell’s expert contributions to legal cases since 2017.

The cases range from patent infringement and validity (including five PTAB inter partes reviews) and trade-secret misappropriation to contract infringement and fraud. Dave’s contributions include:

  • Write expert opinions and rebuttals
  • Give and attend depositions
  • Assist in claim construction
  • Testify in Federal Court
  • Perform source code inspections
  • Provide technical consultation to legal teams

Litigation & Consultation History

  • Kent v. Apple, 1403/7/7/21, for Kent UK Competition Appeal Tribunal, for Kent (active)
  • Samesurf v. Intuit, for Samesurf 3:22-cv-412 (N.D. Cal.) (active)
  • Avision v. Multiscan, 21-2-00064-30 (Wash. Super. Ct. Skamania Cnty.), for Multiscan (active)
  • Beijing Meishe v. TikTok, 6:21-cv-504 (E.D. Tex.), for Beijing Meishe
  • Alarm.com v. Vivint, 2:23-cv-004 (D. Utah), for Vivint
  • Vartuli v. Apple, 21-cv-384676 (Cal. Super. Ct. Santa Clara Cnty.), for Vartuli
  • Chung & Picture Mandarin v. Intellectsoft, 4:21-cv-3074 (N.D. Cal.), for Intellectsoft
  • Sadiant v. Five Pack, DC-22-13302 (Tex. Dist. Ct. Dallas Cnty.), for Sadiant
  • Intuit v. Samesurf, PTAB IPR2023-0339, for Samesurf
  • Intuit v. Samesurf, PTAB IPR2023-0341, for Samesurf
  • Intuit v. Samesurf, PTAB IPR2023-0342, for Samesurf
  • MacDuff v. Dexcom, 18-cv-565 (Tenn. Cir. Ct. Davidson Cnty.), for Dexcom
  • Captova v. Amazon Web Services, AAA/ICDR 01-21-004-9950, for Amazon
  • Vivint v. SkyBell, 2:21-cv-9472 (C.D. Cal.), for Vivint
  • SensorRx v. Eli Lilly, 3:19-cv-643 (W.D.N.C.), for SensorRx
  • KuhnMccullum v. Pek Pongpaet, 20-cv-362436 (Cal. Super. Ct. Santa Clara Cnty.), for Pek Pongpaet
  • Miller Mendel v. Oklahoma City, 5:18-cv-990 (W.D. Okla.), for Miller Mendel
  • Guardian Alliance Technologies v. Tyler Miller, PTAB IPR2020-00031, for Tyler Miller
  • Perfect Company v. Adaptics Limited, 3:14-cv-5976 (N.D. Cal.), for Perfect Company
  • Perfect Company v. Adaptics Limited, 3:17-cv-5922 (N.D. Cal.), for Perfect Company
  • Adaptics Limited v. Perfect Company (IPR), PTAB IPR2018-01596, for Perfect Company