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LESLIE EUGENE H

Overview
  • Total Patents
    12
About

LESLIE EUGENE H has a total of 12 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States and Canada. Its main competitors in its focus markets basic materials chemistry, chemical engineering and machines are INDIAN REFINING CO, UNIPURE CORP and PETROLEUM RECTIFYING CO CALIFORNIA.

Patent filings in countries

World map showing LESLIE EUGENE Hs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Canada 5

Patent filings per year

Chart showing LESLIE EUGENE Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leslie Eugene H 12
#2 Baker Edwin M 10

Latest patents

Publication Filing date Title
US3004665A System for beneficiating gravel and the like
US1868466A Distilling process and apparatus
US1808420A Process of and apparatus for separating desired liquefiable constituents from alpha gaseous mixture
US1684771A Process of treating and fractionating cracking-plant vapors
US1780977A Process of and apparatus for steam distillation
US1730892A Art of distillation
US1808419A Vaporizer and process of vaporization
CA276529A Vaporizer and process of vaporization
CA276531A Petroleum distillation process
CA276530A Fractionator
CA282747A Art of distillation
CA276532A Steam distillation process