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ROBERTS EDWARD S

Overview
  • Total Patents
    13
About

ROBERTS EDWARD S has a total of 13 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United States, Canada and Austria. Its main competitors in its focus markets materials and metallurgy, organic fine chemistry and engines, pumps and turbines are TYRER DANIEL, FERDINAND GROS & BOUCHARDY and ZIBO GUANGTONG CHEMICAL CO LTD.

Patent filings in countries

World map showing ROBERTS EDWARD Ss patent filings in countries
# Country Total Patents
#1 United States 5
#2 Canada 3
#3 Austria 2
#4 Switzerland 2
#5 Germany 1

Patent filings per year

Chart showing ROBERTS EDWARD Ss patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roberts Edward S 10
#2 Christmann Ludwig J 5
#3 Ludwig J Christmann 2
#4 Edward S Roberts 2
#5 Kalous Michael J 1

Latest patents

Publication Filing date Title
US4132546A Smelting of iron ore with partially dried lignite
US4019343A Refrigeration system using enthalpy converting liquid turbines
US3995428A Waste heat recovery system
CA981420A Method for converting nitric oxide to nitrogen dioxide and recovery thereof
US3268294A Process for producing selenium dioxide
US2955917A Process and apparatus for the manufacture of nitric acid at elevated pressures with full power recovery
CA724207A Method of oxidation of aromatic compounds
CA778682A Process of producing selenium oxide