KC

Koan S. Chong

AT AT&T: 11 patents #1,608 of 18,772Top 9%
Overall (All Time): #458,935 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9973545 Method and device for managing circuit switched data calls Vimal Patel, James Ibezim 2018-05-15
8787360 Method and apparatus for processing multiple services per call John Carl Brown, Robert Yaeger Peters, Jr., Mark A. Ratcliffe, Harish Samarasinghe 2014-07-22
8700786 Systems and methods for termination of session initiation protocol James R. Dobbins, Mark A. Ratcliffe 2014-04-15
8239554 Systems and methods for termination of session initiation protocol James R. Dobbins, Mark A. Ratcliffe 2012-08-07
8121274 Method and apparatus for processing multiple services per call John Carl Brown, Robert Yaeger Peters, Jr., Mark A. Ratcliffe, Harish Samarasinghe 2012-02-21
7920542 Method and apparatus for providing secure voice/multimedia communications over internet protocol Harbir S. Brar, Kevin B. Kealy, William Todd Marshall, Israel Rosencrantz, Rachel Rosencrantz +1 more 2011-04-05
7804822 Method and apparatus for detecting subscriber service address change Brian Freeman, Jay Gabin, Daryl Goins, Galia Merhav, Lina O'Connor +1 more 2010-09-28
7657015 Method and apparatus for processing multiple services per call John Carl Brown, Robert Yaeger Peters, Jr., Mark A. Ratcliffe, Harish Samarasinghe 2010-02-02
7366782 Systems and methods for termination of session initiation protocol James R. Dobbins, Mark A. Ratcliffe 2008-04-29
6377674 Method for global title translation processing Robert Yaeger Peters, Jr., Mark A. Ratcliffe 2002-04-23
6205557 Redundant call processing Martin Dolly, Andrew R. Jacob, Carolyn Roche Johnson, Wonseok Lee, David Lewis +2 more 2001-03-20