Inventor
TERPSTRA RICHARD
US14 patents
⚠️ This page may combine multiple inventors who share the name “TERPSTRA RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEVEL 3 COMMUNICATIONS LLC
10 patentsUS8036214B2Oct 11, 2011
Voice over data telecommunications network architecture
LEVEL 3 COMMUNICATIONS LLC51 citations96
US7813335B2Oct 12, 2010
Internet protocol trunk groups
LEVEL 3 COMMUNICATIONS LLC24 citations91
US7738647B2Jun 15, 2010
Local routing management in a telecommunications network
LEVEL 3 COMMUNICATIONS LLC11 citations90
US7961720B2Jun 14, 2011
Geographic trunk groups
LEVEL 3 COMMUNICATIONS LLC6 citations72
US7929676B2Apr 19, 2011
Local routing management in a telecommunications network
LEVEL 3 COMMUNICATIONS LLC6 citations71
US7995736B2Aug 9, 2011
Local routing management in a telecommunications network
LEVEL 3 COMMUNICATIONS LLC3 citations60
US9634941B2Apr 25, 2017
Regional independent tandem telephone switch
LEVEL 3 COMMUNICATIONS LLC1 citations56
US7657017B2Feb 2, 2010
System and method for major trading area (MTA) routing in a telecommunications network
LEVEL 3 COMMUNICATIONS LLC0 citations51
US7995729B2Aug 9, 2011
Local routing management in a telecommunications network
LEVEL 3 COMMUNICATIONS LLC0 citations49
US9800956B2Oct 24, 2017
Regional independent tandem telephone switch
LEVEL 3 COMMUNICATIONS LLC0 citations46