Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Telephone signal classification and phone message delivery method and system

Telephone signal classification and phone message delivery method and system

US Patent 5311575 · Granted May 10, 1994

Estimated economic value: $5,766,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Ion implantation system for manufacturing semiconductor device2004
Mechanism for preventing metallic ion contamination of a wafer in ion implantati1999
Space-saving ion-implantation system installed both in and adjacent to a semicon1999
Water-removing exhaust system for an ion implanter and a method for using the sa1999
Faraday cup assembly for a semiconductor ion-implanting apparatus1998
Exhaust system for an ion implanter1998
Combining estimates using fuzzy sets1994
System and method for improved speech acquisition for hands-free voice telecommu1994
Apparatus and method for drill wear prediction1993