Learn more

GRAY & DAVIS INC

Overview
  • Total Patents
    14
About

GRAY & DAVIS INC has a total of 14 patent applications. Its first patent ever was published in 1914. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, engines, pumps and turbines and transport are ECLAIRAGE ELECTR DES VEHICULES, KETTERING CHARLES FRANKLIN and DUCELLIER ETS.

Patent filings in countries

World map showing GRAY & DAVIS INCs patent filings in countries
# Country Total Patents
#1 United States 14

Patent filings per year

Chart showing GRAY & DAVIS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Moses William B 8
#2 Ledig Jacob 1
#3 Elkins David Henry 1
#4 Gray William 1
#5 Wadsworth George Reed 1
#6 Wackwitz Ernest F 1
#7 Ehrlich Louis B 1

Latest patents

Publication Filing date Title
US1517281A Dynamo
US1357582A Generator and cut-out switch apparatus
US1373015A Electromagnetic switch
US1398531A Focuszng apparatus for lamps
US1396868A Ignition apparatus
US1383229A Ignition apparatus
US1347117A Power-transmission mechanism
US1380113A Electric starting and lighting apparatus for automobiles
US1262544A Ignition device.
US1363806A Regulator for dynamo-electric machines
US1252706A Storage-battery support.
US1257340A Automobile construction.
US1170519A Lamp.
US1158597A Combined engine-starter, dynamo, and ignition-timer for automobiles.