Assignee

HARTOG JOS DEN

NL2 patents

Top patents by PatentIndex Score

US8077703B2Dec 13, 2011

Induced answering method and system for circuit switching-based telephony

HARTOG JOS DEN2 citations57

US9094502B2Jul 28, 2015

Induced answering method and system for circuit switching-based telephony

HARTOG JOS DEN0 citations46