Patent & IP news archive

Complaint for Patent Infringement
Civil Action No. 1:12-cv-01340-JTN, the Hon. Janet T. Neff presiding.
Filed on Dec. 10, 2012 in the U.S. District Court for the Western District of Michigan;


Zanfel Laboratories
King & Partners PLC; Holland, MI
William Louis King

Patents in case

  • 6,423,746: “Urushiol induced contact dermatitis and method of use” by Yarbrough et. al. and assigned to The William M. Yarbrough Foundation.. Includes 8 claims (1 indep.). Was application 09/347,714. Filed 7/3/1999 & Granted 7/23/2002.
  • 7,008,963: “Urushiol induced contact dermatitis solution” by Yarbrough and assigned to The William M. Yarbrough Foundation. Prosecuted by King & Partners, PLC. Includes 11 claims (3 indep.). Was application 10/200,691. Filed 7/22/2002 & Granted 3/7/2006.

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