Legal Opinion
Katz v. AT & T Corp.
District Court, E.D. Pennsylvania
Decided August 26, 1999No. CIV. A. 97-4453PublishedCited by 14 opinions
1Opinion of the Court
CONCLUSIONS OF LAW REGARDING PATENT CLAIM CONSTRUCTION
LOWELL A. REED, Jr., Senior District Judge.
Ronald A. Katz (“Katz”) is the inventor in a large body of patents dealing with telephonic interactive voice applications. The plaintiffs, Ronald A. Katz Technology Licencing, L.P. and MCI Telecommunications Corporation, filed this patent infringement suit against AT & T Corporation, AT & T Universal Card Services Corporation, and AT & T American Tran-stech, Inc., alleging that the defendants are infringing a number of Katz’s patents. In total, over 400 patent claims are at issue in this lawsuit.…
2Cases cited26 opinions
- MARKMAN Et Al. v. WESTVIEW INSTRUMENTS, INC., Et Al.Supreme Court of the United States · 1996
- Herbert Markman and Positek, Inc. v. Westview Instruments, Inc. And Althon Enterprises, Inc.Court of Appeals for the Federal Circuit · 1995
- Vitronics Corporation v. Conceptronic, Inc.Court of Appeals for the Federal Circuit · 1996
- Cybor Corporation v. Fas Technologies, Inc., and Fastar Ltd., Defendants-CrossCourt of Appeals for the Federal Circuit · 1998
- Renishaw Plc v. Marposs Societa' Per Azioni and Marposs CorporationCourt of Appeals for the Federal Circuit · 1998
21 more not listed; retrieve them via the Exa API.
3Cited by14 opinions
- Allvoice Computing PLC v. Nuance Communications, Inc.Court of Appeals for the Federal Circuit · 2007
- Verizon California Inc. v. Ronald A. Katz Technology Licensing, L.P.District Court, C.D. California · 2003
- Trinity Industries, Inc. v. Road Systems, Inc.District Court, E.D. Texas · 2000
- SightSound. Com Inc. v. N2k, Inc.District Court, W.D. Pennsylvania · 2002
- Rackman v. Microsoft Corp.District Court, E.D. New York · 2000
9 more not listed; retrieve them via the Exa API.