Inventor
TRANDAL DAVID
US17 patents
⚠️ This page may combine multiple inventors who share the name “TRANDAL DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CALLWAVE INC
6 patentsUS7103167B2Sep 5, 2006
Systems and methods for call screening
CALLWAVE INC149 citations99
US7636428B2Dec 22, 2009
Systems and methods for call screening
CALLWAVE INC28 citations96
US7474432B1Jan 6, 2009
Methods and systems for fax routing
CALLWAVE INC53 citations96
US7460653B2Dec 2, 2008
Apparatus and methods for telecommunication authentication
CALLWAVE INC34 citations92
US7409048B2Aug 5, 2008
Call processing and subscriber registration systems and methods
CALLWAVE INC29 citations92
US7965825B1Jun 21, 2011
Methods and systems for transferring voice messages and faxes over a network
CALLWAVE INC14 citations81
BRAHM DAVID
4 patentsUS8472604B2Jun 25, 2013
Systems and methods for call screening
BRAHM DAVID23 citations92
US8064588B2Nov 22, 2011
Systems and methods for call screening
BRAHM DAVID25 citations92
US8964951B1Feb 24, 2015
Apparatus and methods for telecommunication authentication
BRAHM DAVID4 citations72
US8213581B1Jul 3, 2012
Apparatus and methods for telecommunication authentication
BRAHM DAVID3 citations62