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PHONEMATE INC

Overview
  • Total Patents
    13
About

PHONEMATE INC has a total of 13 patent applications. Its first patent ever was published in 1990. It filed its patents most often in United States, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets telecommunications and environmental technology are NAGASHIMA KATSUYOSHI, SEISHIYOU ELECTRON KK and LE TAXIPHONE.

Patent filings in countries

World map showing PHONEMATE INCs patent filings in countries

Patent filings per year

Chart showing PHONEMATE INCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Knuth Stephen B 8
#2 Core Kenneth R 6
#3 Yossifor Oded 4
#4 Karnowski Mark 4
#5 Afshar Eskandar 3
#6 Karnowski Mark J 3
#7 Mazzolini James W 1
#8 Pacciardi Pierluigi 1
#9 Brown Iii Sanford M 1
#10 Jarrett Alastair W 1

Latest patents

Publication Filing date Title
US5432844A Shared line answering system with enhanced extension device features
US5400393A Voice mail digital telephone answering device
US5432836A Interchangeable base arrangement for wall mount/desk mount telephone answering device
WO9422258A1 Environmental adaptive mechanism for channel utilization in cordless telephones
US5418839A Environmental adaptive mechanism for channel utilization in cordless telephones
AU3933693A Environmental adaptive mechanism for channel utilization in cordless telephones
US5406618A Voice activated, handsfree telephone answering device
US5392332A Shared line telephone answering system with a telephone line-powered disconnect module
US5313516A Telephone answering device with automatic function
US5197093A Enviromental adaptive mechanism for channel utilization in cordless telephones
US5289529A Means for improving the dynamic range of an analog/digital converter in a digital telephone answering machine
US5111500A Handset or speaker message retrieval system