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DAVIS NELSON L

Overview
  • Total Patents
    16
About

DAVIS NELSON L has a total of 16 patent applications. Its first patent ever was published in 1947. It filed its patents most often in United States, Belgium and Canada. Its main competitors in its focus markets chemical engineering, machines and mechanical elements are ALLMINERAL AUFBEREITUNGSTECH, DEISTER EMIL and LEON HOYOIS.

Patent filings in countries

World map showing DAVIS NELSON Ls patent filings in countries
# Country Total Patents
#1 United States 13
#2 Belgium 2
#3 Canada 1

Patent filings per year

Chart showing DAVIS NELSON Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Davis Nelson L 16

Latest patents

Publication Filing date Title
US3028962A Sink and float separation apparatus
US2877897A Method and apparatus for sink and float separation for minerals of small particle size
US2821303A Method for float and sink mineral separation
US2760633A Method of and apparatus for sink and float separation of fine coal and the like
US2692049A Apparatus and method for float and sink material separation
US2688423A Plug valve and gas agitating means for storage sumps
US2807366A Mineral separating device and method
US2692048A Method for sink and float mineral separation
US2652175A Plug valve for controlling the flow of solids laden liquid
US2670078A Method and apparatus for separating and drying comminuted solids
US2516962A Mineral separation apparatus and process
US2521347A Densifier
US2521152A Mineral separation process
CA514740A Mineral separation apparatus and process