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CHAPMAN MATTHEW T

Overview
  • Total Patents
    13
About

CHAPMAN MATTHEW T has a total of 13 patent applications. Its first patent ever was published in 1894. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and engines, pumps and turbines are LAYNE, COOK TESTING CO and BAKER CASING SHOE COMPANY.

Patent filings in countries

World map showing CHAPMAN MATTHEW Ts patent filings in countries
# Country Total Patents
#1 United States 12
#2 Canada 1

Patent filings per year

Chart showing CHAPMAN MATTHEW Ts patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chapman Matthew T 12
#2 Bodinson Lars William 1
#3 Chapman Mark C 1

Latest patents

Publication Filing date Title
CA170259A Pump
US1291407A Rotary deep-well pump.
US1264156A Well-sinking apparatus.
US1277381A Rotary pump.
US1302899A Pumping machinery.
US1264155A Well-sinking apparatus.
US833201A Well-sinking apparatus.
US810910A Well-sinking apparatus.
US769728A Well-sinking apparatus.
US769727A Well-sinking apparatus.
US833200A Well-sinking apparatus.
US775417A Well-sinking apparatus.
US677438A Pumping apparatus.