Learn more

MCKEE RALPH H

Overview
  • Total Patents
    112
About

MCKEE RALPH H has a total of 112 patent applications. Its first patent ever was published in 1905. It filed its patents most often in United States and Canada. Its main competitors in its focus markets materials and metallurgy, organic fine chemistry and textiles and paper are WHITE ALFRED H, CLAUDE BONARD and RALPH HARPER MCKEE.

Patent filings in countries

World map showing MCKEE RALPH Hs patent filings in countries
# Country Total Patents
#1 United States 78
#2 Canada 34

Patent filings per year

Chart showing MCKEE RALPH Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mckee Ralph H 112
#2 Salls Carroll M 3
#3 Burke Stephen P 2
#4 Morse Earle H 2
#5 Hessel Frederick A 2
#6 Johnston William S 1
#7 Blengsli Helmer L 1
#8 Bahner Carl T 1
#9 Holmes Andrew A 1

Latest patents

Publication Filing date Title
US2731344A Process for making pulp and paper
US2637069A Continuous manufacture of rayon yarns
US2544509A Method of making paper containers greaseproof
US2377435A Manufacture of cellulose nitrate
US2401879A Purification of crude trinitrotoluene
US2239925A Process of producing porous plaster and product thereof
US2240191A Process of producing porous concrete
US2298800A Process for the production of beryllium oxide or hydroxide
US2280247A Waxlike product and method of making the same from tall oil or rosin and fatty acids
US2297062A Separation of oil from gas
US2308564A Recovery of cellulose and lignin from wood
US2286220A Cellulose composition material
US2164587A Method of producing amines
US2072376A Process of removing fluorides from water
US2063177A Recovery of organic constituents from black liquor
US1932904A Process of making paper pulp
US1943030A Propagation of trees from cuttings
US1972568A Method of producing phenylstearic acid
US1968304A Ink remover
US1958439A Recovery of organic constituents from black liquor