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OTHMER DONALD F

Overview
  • Total Patents
    62
About

OTHMER DONALD F has a total of 62 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets environmental technology, machines and chemical engineering are HVR WATER PURIFICATION AB, AQUA PURE VENTURES INC and INTERIOR.

Patent filings in countries

World map showing OTHMER DONALD Fs patent filings in countries
# Country Total Patents
#1 United States 41
#2 Canada 6
#3 Germany 6
#4 Austria 3
#5 Switzerland 3
#6 Japan 2
#7 Australia 1

Patent filings per year

Chart showing OTHMER DONALD Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Othmer Donald F 47
#2 Smith Warren R 5
#3 F Othmer Donald 4
#4 Othmer Donald F Prof 2
#5 Ricciardi Louis G 2
#6 Mellenger Edmund R 2
#7 Donald F Othmer 2
#8 Donarudo Efu Ozumaa 2
#9 Kern Donald Q 1
#10 Nathan Wishnefsky 1

Latest patents

Publication Filing date Title
US4405343A Methanol dehydration
US4329156A Desulfurization of coal
US4251227A Method for producing SNG or SYN-gas from wet solid waste and low grade fuels
US4116712A Solvent refining of sugar
CA1087129A Wet combustion
DE2636701A1 AC-heating of pipes using skin effect - suitable for pipes conveying heavy oil
US4151075A Separation of components of a fluid mixture
US4017421A Wet combustion process
CA1035833A Steel tube-wire ac cable
US3928145A Process for producing power, fresh water, and food from the sea and sun
CA1026409A Skin effect pipe heating by a.c. in steel
US3989510A Manufacture of titanium chloride and metallic iron from titaniferous materials containing iron oxides
US3977866A Method for producing titanium
US3974398A Wire and steel tube as AC cable
US3975617A Pipe heating by AC in steel
US3938988A Method for producing aluminum metal from its salts
US3861904A Method for producing aluminum metal directly from ore
US3859077A Manufacture of titanium chloride, synthetic rutile and metallic iron from titaniferous materials containing iron
DE2246652A1 Effluent/sewage treatment under pressure at elevated temp - for reduction of B.O.D. or C.O.D. at increased rates
CA952169A Skin heating of steel by a.c.