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CALKINS RAYMOND M

Overview
  • Total Patents
    11
About

CALKINS RAYMOND M has a total of 11 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and thermal processes are CONS SYSTEMS INC, LEVINTON RICARDO HORACIO and DIETRICH IND INC.

Patent filings in countries

World map showing CALKINS RAYMOND Ms patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 2

Patent filings per year

Chart showing CALKINS RAYMOND Ms patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines
#3 Thermal processes

Top inventors

# Name Total Patents
#1 Calkins Raymond M 11
#2 Swank James W 10

Latest patents

Publication Filing date Title
US2147240A Roof structure
US2171540A Building construction
US2148434A Panel building construction
US2142110A Building construction
US2095434A Building construction
US2070648A Roof construction
US2098717A Building construction
US2039293A Building construction
US2062160A Building construction
CA380586A Building
CA378007A Building construction