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JOHN D STEELE

Overview
  • Total Patents
    22
About

JOHN D STEELE has a total of 22 patent applications. Its first patent ever was published in 1956. It filed its patents most often in Canada and United States. Its main competitors in its focus markets measurement, basic materials chemistry and engines, pumps and turbines are GUANGDONG UNITEN BIOTECHNOLOGY CO LTD, BEIJING HTNOVA DETECTION TECH CO LTD and FOERSTER INST DR GMBH & CO KG.

Patent filings in countries

World map showing JOHN D STEELEs patent filings in countries
# Country Total Patents
#1 Canada 18
#2 United States 4

Patent filings per year

Chart showing JOHN D STEELEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Switzer Joseph L 10
#2 Kazenas Zenon 8
#3 Ward Richard A 6
#4 Zenon Kazenas 3
#5 Mcintosh Maurice D 3
#6 Switzer Robert C 3
#7 Clarke John E 1
#8 Gaunt Thomas N 1

Latest patents

Publication Filing date Title
US3246149A Method for radioactive magnetic flaw detection
US3155622A Radioactive magnetic flaw detection composition and process for making same
US2864771A Method of making fluorescent paramagnetic pigments and product produced thereby
US2936287A Magnetic particles
CA613489A Method of making pigmented powders for a magnetic particle inspection and product made thereby
CA571765A Magnetic particles
CA760492A Uniform finely divided particle dispersions
CA648263A Flaw detection using paramagnetic particles
CA558795A Mechanical printing of daylight fluorescent compositions
CA730071A Method and means for radioactive magnetic flaw detection
CA527993A Fluorescent textiles
CA740499A Thermoplastic resin pigment dispersed in a resin solution
CA774682A Method for radioactive magnetic flaw detection
CA577744A Thermoplastic melamine-sulphonamide-aldehyde pigments and process of making the same
CA600285A Dyed resinous pigments of vinyl copolymer
CA631846A Thermoplastic melamine-sulphonamide-aldehyde co-condension product and process of making same
CA591064A Dyed vinyl resinous pigment
CA590859A Fluorescent-dyed alkyd resin
CA746553A Synthetic resin and pigment
CA581022A Daylight fluorescent printing