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DELONG CHARLES F

Overview
  • Total Patents
    23
About

DELONG CHARLES F has a total of 23 patent applications. Its first patent ever was published in 1933. It filed its patents most often in Netherlands, Canada and Germany. Its main competitors in its focus markets macromolecular chemistry and polymers, basic materials chemistry and machines are ERION G, BATEGU GUMMITECHNOLOGIE GMBH & CO KG and MEDIA PLUS INC.

Patent filings in countries

World map showing DELONG CHARLES Fs patent filings in countries
# Country Total Patents
#1 Netherlands 4
#2 Canada 3
#3 Germany 3
#4 Japan 3
#5 India 2
#6 Italy 2
#7 Belgium 1
#8 Switzerland 1
#9 Egypt 1
#10 United Kingdom 1
#11 Norway 1
#12 Sweden 1

Patent filings per year

Chart showing DELONG CHARLES Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Delong Charles F 5
#2 Delong Charles Frederick 4
#3 Chiyaarusu Efu Derongu 3
#4 Delong C F 1
#5 Delong Frank E 1
#6 Delong Ch F 1
#7 Erion G L 1
#8 Charles Frederick Delong 1

Latest patents

Publication Filing date Title
NL7713075A Plant growth inhibiting compsn. for grass, trees, etc. - contains maleic hydrazide derivs. and water-insol. hydrophilic acrylic! polymers and copolymers as aq. dispersion or soln.
JPS5473120A Plant grow control composition and application thereof
NL7709214A Coating compsn. for porous inorganic substrates, e.g. cement - comprising carboxylated acrylic polymer, crosslinking agent and ultraviolet absorber
DE2735665A1 GAS AND STEAM PERMEABLE PROTECTIVE COATINGS FOR POROESE INORGANIC CARRIERS AND METHODS FOR PROTECTING THESE CARRIERS
CH636328A5 Method for protecting porous inorganic substrates
IT1112093B Coating compsn. for porous inorganic substrates, e.g. cement - comprising carboxylated acrylic polymer, crosslinking agent and ultraviolet absorber
CA1097543A Method for preserving porous inorganic substrates
EG14361A Method of reducing loss of water by transpiration and composition therefore
GB410045A Improvements relating to the packaging of thread on bobbins
CA34371A Garment hook