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HEWITT JOHN

Overview
  • Total Patents
    20
About

HEWITT JOHN has a total of 20 patent applications. Its first patent ever was published in 1893. It filed its patents most often in Canada, United Kingdom and United States. Its main competitors in its focus markets medical technology, thermal processes and furniture and games are BERMAN IRWIN R, HENRY ALFRED ERNEST TALLEY and TALLEY GROUP LTD.

Patent filings in countries

World map showing HEWITT JOHNs patent filings in countries
# Country Total Patents
#1 Canada 10
#2 United Kingdom 8
#3 United States 2

Patent filings per year

Chart showing HEWITT JOHNs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Hewitt John 19
#2 Baker Francis Robert 2
#3 Hewitt Thomas 1
#4 Linstrom Charles August 1

Latest patents

Publication Filing date Title
CA2333821A1 Terricky 02
GB8927916D0 Erythrocyte sedimentation rate test rack
CA90172A Wire fence
US766251A Oil-burner.
US781602A Wire fence.
GB190121605A An Improved Compression Release for Use with Oil or Petrol Engines of Motor Cars or Motor Cycles.
GB190009873A Improvements in Electric Motors, Batteries, and Connections thereof for Propelling Automobiles and like Vehicles.
GB189603919A Improvements in and relating to Pocket Drawing Compasses.
GB189514065A Improvements in Frames for Pocket Knives, Scissors, and for other like purposes.
GB189421369A Improvements in Folding Scissors.
GB189322623A Improvements in Glaziers' Wheel Glass Cutters.
GB189322537A Improvements in Railway and Tramway Crossings.
CA3028A Sad and fluting iron
CA3042A Smoothing, band, glossing and fluting iron
CA5078A Improvements on ore-crushers
CA3029A Improvements on fluting plates
CA5867A Lightning rod
CA3030A Glossing and fluting iron
CA4907A Improvements on glossing and flutting irons
CA35210A Cresting for sheet metal roots