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FIELD STEPHEN DUDLEY

Overview
  • Total Patents
    11
About

FIELD STEPHEN DUDLEY has a total of 11 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets digital networks, electrical machinery and energy and telecommunications are EASTERN TELEGRAPH CO LTD, KINSLEY CARL and ERNEST SYDNEY HEURTLEY.

Patent filings in countries

World map showing FIELD STEPHEN DUDLEYs patent filings in countries
# Country Total Patents
#1 United States 8
#2 United Kingdom 3

Patent filings per year

Chart showing FIELD STEPHEN DUDLEYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Field Stephen Dudley 11

Latest patents

Publication Filing date Title
US975756A Multiplex-telegraph apparatus.
US883530A Telegraph-repeater.
US889592A Telegraph system.
GB190603630A Improvements in and relating to a Neutral Relay for use in Duplex and Quadruplex Telegraphy.
GB190512914A Improvements in Telegraphic Receiving-apparatus
US812557A Method of receiving telegraphic signals.
US800844A Quadruplex telegraphy.
GB190404176A Improvements in and relating to Multiplex Telegraphy.
US755647A Multiplex telegraphy.
US755646A Multiplex telegraphy.
US734689A Vibratory telegraphy.