Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Apparatus and method for verification of the presence of a remote user

Apparatus and method for verification of the presence of a remote user

US Patent 6418198 · Granted Jul 9, 2002

Estimated economic value: $5,799,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Fast disconnects for generator systems2023
Automated beverage dispensing machines2022
Automated beverage dispensing machines2020
Telephone answering apparatus and method for confirming an acoustic command sign2003
Apparatus and method for overriding an automatic answer function of a telephone 2002
Apparatus and method for overriding an automatic answer function of a telephone 2002
Apparatus and method for detecting the source of a telephone tone signal2001
Telephone answering apparatus for indicating the presence of a power cycle2001
Telephone answering apparatus and method for determining the time of message rec2001