Patent & IP news archive

Complaint for Declaratory Judgement
Civil Action No. 1:13-cv-00067-UNA; no judge yet assigned.
Filed on Jan. 10, 2013 in the U.S. District Court for the District of Delaware;


Estech Systems
Potter Anderson & Corroon, LLP; Wilmington, DE
Jonathan A. Choa
Philip A. Rovner

Patents in case

  • 6,236,717: “Simultaneous voice/data answering machine” by Bremer et. al. and assigned to Paradyne Corporation. Prosecuted by Thomas, Kayden, Horstemeyer & Risley, LLP. Includes 18 claims (6 indep.). Was application 09/002,637. Filed 1/5/1998 & Granted 5/22/2001.
  • 5,881,142: “Integrated communications control device for a small office configured for coupling within a scalable network” by Frankel et. al. and assigned to Jetstream Communications, Inc.. Prosecuted by Haverstock & Owens LLP. Includes 30 claims (7 indep.). Was application 08/504,645. Filed 7/18/1995 & Granted 3/9/1999.

Attorney? Our daily litigation alerts are free, awesome, and include complaint PDFs.

Case documents (PDF)

Fig. 1 from 6,236,717

6,236,717 figure 1
Some content © 2007–2017 RPX Corporation.
Terms of Service & Privacy Policy
For DMCA requests contact