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STEM DONALD E

Overview
  • Total Patents
    20
About

STEM DONALD E has a total of 20 patent applications. Its first patent ever was published in 1946. It filed its patents most often in United States and Canada. Its main competitors in its focus markets chemical engineering, foods and drinks and packaging and shipping are GENANO OY, INTERNAT SEPARATOR COMPANY and AIRTUNNEL LTD OY.

Patent filings in countries

World map showing STEM DONALD Es patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 6

Patent filings per year

Chart showing STEM DONALD Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stem Donald E 20

Latest patents

Publication Filing date Title
US3160583A Magnetic grates
US3119769A Method and device for removing metal particles form traveling products
US3040896A Magnetic trap for conduits
US2919803A Magnetic separators
US2781128A Magnetic separators for ducts
US2847212A Method and apparatus for separating magnetic sheets
US2885081A Magnetic traps
US2694223A Method for trapping magnetic particles
US2657342A Magnetic plate structure
US2654480A Magnetic floor sweeper
US2654478A Method and apparatus for automatically separating underweight cans from normal weight cans
US2619674A Magnetic trapping device
US2699871A Magnetic separator
US2635754A Magnetic plate
CA532014A Magnetic separator
CA662928A Magnetic trap for conduits
CA478267A Magnetic plates and traps
CA754910A Magnetic grates
CA525389A Method and device for trapping magnetic particles
CA546507A Magnetic separators