Inventor · disambiguated record
Michael Kirchner
Also filed as: KIRCHNER MICHAEL · KIRCHNER MICHAEL C · KIRCHNER MICHAEL CHARLES
7 granted patents·1 pending application·432 citations·filing 1995–2023
89Inventor score
Files withMCI COMMUNICATIONS CORP3MCI INC1TRANSP IP HOLDINGS LLC1VERIZON BUSINESS GLOBAL LLC1WABTEC HOLDING CORP1
Top patents by PatentIndex Score
8 records- 0185US6393017B1Virtual PBX systemWORLDCOM INC·Filed 1999·Granted May 21, 2002·103 cites·27 claims
- 0284US6775272B2Virtual PBX systemMCI INC·Filed 2002·Granted Aug 10, 2004·31 cites·25 claims
- 0381US5706437ASystem and method for accessing a service on a services networkMCI COMMUNICATIONS CORP·Filed 1995·Granted Jan 6, 1998·153 cites·15 claims
- 0480US9846025B2Track data determination system and methodWABTEC HOLDING CORP·Filed 2012·Granted Dec 19, 2017·12 cites·29 claims
- 0572US5745685AProtocol extension in NSPP using an acknowledgment bitMCI COMMUNICATIONS CORP·Filed 1995·Granted Apr 28, 1998·85 cites·21 claims
- 0666US7496091B2Virtual PBX systemVERIZON BUSINESS GLOBAL LLC·Filed 2004·Granted Feb 24, 2009·7 cites·16 claims
- 0754US2023339526A1Intersection management systemTRANSP IP HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 0853US6263370B1TCP/IP-based client interface to network information distribution system serversMCI COMMUNICATIONS CORP·Filed 1997·Granted Jul 17, 2001·41 cites·10 claims
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