Learn more

DYFORM ENG LTD

Overview
  • Total Patents
    15
About

DYFORM ENG LTD has a total of 15 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Canada, United Kingdom and United States. Its main competitors in its focus markets machines and civil engineering are WILLIAM PORTER WITHEROW, INTELLECTUAL PROPERTY MAN LLC and GERMIX OY.

Patent filings in countries

World map showing DYFORM ENG LTDs patent filings in countries
# Country Total Patents
#1 Canada 4
#2 United Kingdom 3
#3 United States 3
#4 Germany 2
#5 France 1
#6 Mexico 1
#7 Netherlands 1

Patent filings per year

Chart showing DYFORM ENG LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machines
#2 Civil engineering

Top inventors

# Name Total Patents
#1 Bunn Christopher B 7
#2 Bunn Norman W 4
#3 Netupsky Boris 2
#4 Putti George 1

Latest patents

Publication Filing date Title
DE2931234A1 Oblong concrete component casting machine - has chamber with tube supporting reinforcing member and concrete transporting device
DE2930097A1 Concrete slab surface finishing device - has frame movable over support rails and carries hopper and depositing finishing material onto rotatable roller and hence slab
GB2054014A Concrete slab surface finishing apparatus
CA1100326A Large-panel concrete wall bearing components
CA1121140A Concrete slab surface finishing apparatus
CA1100297A Reinforcing member support in concrete extruders
CA1031934A Machine for extruding cement-like material into articles