Learn more

ENGELHARD IND

Overview
  • Total Patents
    293
About

ENGELHARD IND has a total of 293 patent applications. Its first patent ever was published in 1956. It filed its patents most often in Canada, France and Belgium. Its main competitors in its focus markets materials and metallurgy, chemical engineering and organic fine chemistry are SIGNA CHEMISTRY LLC, ENGELHARD IND INC and TOPSOE HALDOR AS.

Patent filings in countries

World map showing ENGELHARD INDs patent filings in countries
# Country Total Patents
#1 Canada 192
#2 France 86
#3 Belgium 7
#4 Netherlands 5
#5 United Kingdom 2
#6 United States 1

Patent filings per year

Chart showing ENGELHARD INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Keith Carl D 23
#2 Rylander Paul N 20
#3 Andersen Holger C 17
#4 Cohn Johann G E 14
#5 Hill James S 10
#6 Pfefferle William C 10
#7 Fitch Howard M 9
#8 Greenspan Lawrence 7
#9 Anderson Edward P 7
#10 Hauel Anna P 7

Latest patents

Publication Filing date Title
US3811925A Method of applying a hot luster coating to glass by electrostatic means
FR1462090A Process for removing organic impurities from a gaseous effluent, in particular from a coating oven
GB1066388A Preparation of aromatic hydrocarbons
FR1267194A Nitrogen oxide oxidation process
CA652143A Asbestos cloth supported catalyst
CA663386A Manufacture of electrical contacts
CA822003A Spinnerette
CA580002A Method of extrusion of alumina hydrates
CA682043A Cathodic protection system
CA762664A High pressure processes and pressure-treated products
CA597211A Oxygen analysis of gases
CA703202A Quartz fibers and extruded rods
CA736650A Method of making spinnerettes
CA803990A Gold plating
CA602886A Anode for cathodically protecting
CA612246A Hydrogenation of saccharides
CA639436A Process for the preparation of alumina hydrate
CA761039A Isomerization of alkyl-benzene hydrocarbons
CA688028A Electric cell
CA574158A Method of making a composite rod and electrode