Patent & IP news archive

Complaint for Patent Infringement
Civil Action No. 3:13-cv-00122; no judge yet assigned.
Filed on Feb. 22, 2013 in the U.S. District Court for the Western District of North Carolina;

Plaintiffs

v.
Celgard
Kilpatrick Townsend & Stockton LLP; Winston-Salem, NC
J Steven Gardner

Defendants

Patents in case

  • 5,034,404: “Guanidine derivatives, their production and insecticides” by Uneme et. al. Prosecuted by Wegner, Cantor, Mueller & Player. Includes 10 claims (2 indep.). Was application 07/456,863. Granted 7/23/1991.
  • 6,432,586: “Separator for a high energy rechargeable lithium battery” by Zhang. Prosecuted by Hammer, III; Robert H.. Includes 12 claims (3 indep.). Was application 09/546,266. Granted 8/13/2002.
  • 7,256,310: “Levalbuterol salt” by McGlynn et. al. and assigned to Sepracor Inc.. Prosecuted by Hay; Martin A.. Includes 29 claims (5 indep.). Was application 10/728,873. Filed 12/8/2003 & Granted 8/14/2007.

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Case documents (PDF)

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