Patent & IP news archive

Complaint for Patent Infringement
Civil Action No. 1:12-cv-01763-UNA; no judge yet assigned.
Filed on Dec. 23, 2012 in the U.S. District Court for the District of Delaware;

Plaintiffs

v.
Brandywine Communications Technologies
Stamoulis & Weinblatt LLC; Wilmington, DE
Stamatios Stamoulis
Richard Charles Weinblatt

Defendants

Patents in case

  • 6,970,501: “Method and apparatus for automatic selection and operation of a subscriber line spectrum class technology” by Bremer et. al. and assigned to Paradyne Corporation. Prosecuted by Thomas, Kayden, Horstemeyer & Risley LLP. Includes 13 claims (3 indep.). Was application 09/573,518. Filed 5/17/2000 & Granted 11/29/2005.
  • 5,828,657: “Half-duplex echo canceler training using a pilot signal” by Betts et. al. and assigned to Paradyne Corporation. Prosecuted by Thomas, Kayden, Horstemeyer & Risley. Includes 6 claims (3 indep.). Was application 08/536,916. Filed 9/29/1995 & Granted 10/27/1998.
  • 5,206,854: “Detecting loss of echo cancellation” by Betts et. al. and assigned to AT&T Bell Laboratories. Prosecuted by Brendzel; Henry T.. Includes 5 claims (3 indep.). Was application 07/766,234. Filed 9/24/1991 & Granted 4/27/1993.
  • 5,812,537: “Echo canceling method and apparatus for data over cellular” by Betts et. al. and assigned to Paradyne Corporation. Prosecuted by Horstemeyer; Scott A. Thomas, Kayden, Horstemeyer & Risley, LLP. Includes 25 claims (4 indep.). Was application 08/536,908. Filed 9/29/1995 & Granted 9/22/1998.
  • 5,251,328: “Predistortion technique for communications systems” by Shaw and assigned to AT&T Bell Laboratories. Prosecuted by Padnes; David R.. Includes 21 claims (8 indep.). Was application 07/630,636. Filed 12/20/1990 & Granted 10/5/1993.
  • 7,894,472: “Method and apparatus for automatic selection and operation of a subscriber line spectrum class technology” by Bremer et. al. and assigned to Brandywine Communications Technologies, LLC. Prosecuted by Thomas, Kayden, Horstemeyer & Risley, LLP. Includes 22 claims (3 indep.). Was application 11/074,029. Filed 3/7/2005 & Granted 2/22/2011.

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Case documents (PDF)

Fig. 1 from 7,894,472

7,894,472 figure 1

Litigant weblinks

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