Learn more

COWLES C & CO

Overview
  • Total Patents
    24
About

COWLES C & CO has a total of 24 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States. Its main competitors in its focus markets machines, civil engineering and thermal processes are AMERICAN SWISS CO, DEVEREAUX WILLIAM C and EAGLE LOCK COMPANY.

Patent filings in countries

World map showing COWLES C & COs patent filings in countries
# Country Total Patents
#1 United States 24

Patent filings per year

Chart showing COWLES C & COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Murray Christopher L 8
#2 Gates Louis W 7
#3 Lyons Richard A 5
#4 Hart Franklin H 3
#5 Carmichael William A 2
#6 Swisher James A 2
#7 Bulley Louis T 2
#8 Driessens Joseph C 1
#9 Kaimer Richard V 1
#10 Skarzynski Thaddeus S 1

Latest patents

Publication Filing date Title
US7891572B1 Temperature and low water monitoring for boiler systems
US2003005961A1 Water feeder controller for boiler
US6390027B1 Cycle control system for boiler and associated burner
US5739504A Control system for boiler and associated burner
US4152910A Meter box guard lock
US4107959A Meter box guard lock
US1987927A Automobile doorlatch
US1909361A Latch for automobile doors
US1739510A Locker-door lock
US1516287A Locking handle with adjustable safety collar
US1590680A Means for connecting latch handles and shanks
US1508784A Door handle
US1519678A Adjustable escutcheon plate
US1548454A Adjustable escutcheon plate
US1484214A Separable fastener
US1581735A Socket switch
US1424245A Locking handle
US1430793A Window regulator
US1378347A Curtain roller and bracket
US1338485A Controlling mechanism for window-regulators