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CAMPBELL FRANK

Overview
  • Total Patents
    13
About

CAMPBELL FRANK has a total of 13 patent applications. Its first patent ever was published in 1902. It filed its patents most often in Canada, United Kingdom and Czechoslovakia. Its main competitors in its focus markets thermal processes, machines and mechanical elements are CAMPBELL FRANK JUN, SAUDER ENERGY SYSTEMS INC and ACME MARLS LTD.

Patent filings in countries

World map showing CAMPBELL FRANKs patent filings in countries
# Country Total Patents
#1 Canada 4
#2 United Kingdom 4
#3 Czechoslovakia 2
#4 United States 2
#5 Australia 1

Patent filings per year

Chart showing CAMPBELL FRANKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Campbell Frank 5
#2 Campbell Frank Jr 3
#3 Campbell F 1
#4 Wilson George E 1
#5 Peabody Frank A 1

Latest patents

Publication Filing date Title
AU6642481A Interlocking truncated triangular insulator
CA1132450A Interlocking refractory for covering a pipe
GB723554A Improvements relating to load transporting trucks
GB697767A Improvements in devices for supporting vacuum flasks, milk bottles, cups and similararticles
GB389614A Improvements in steam traps
GB348535A Improvements relating to spraying nozzles for washing motor vehicles
US852417A Stock-car.
US806063A Toy pistol.
CA75425A Shingle packer