Learn more

STEWART WILLIAM H

Overview
  • Total Patents
    22
About

STEWART WILLIAM H has a total of 22 patent applications. Its first patent ever was published in 1903. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, mechanical elements and civil engineering are SALTER LARRY, DMM ENGINEERING LTD and OPTO SYSTEM AB.

Patent filings in countries

World map showing STEWART WILLIAM Hs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Canada 4

Patent filings per year

Chart showing STEWART WILLIAM Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stewart William H 22
#2 Esidore Martin 1

Latest patents

Publication Filing date Title
US5290335A Plunger assembly for forming glass containers
US4538155A Antenna mount with rotary positionable feature
US3116625A Control means for cleaning machines having solvent recovery system
US2913204A Malleable nail-strap
US2887004A Staple having flat depressed head with reinforcing ridge
US2581215A Outside metal blind
US2430744A Severing tape dispenser
US2282618A Fishing rod
US1868508A Sectional rod and coupling member therefor
US1890101A Plaiting device
US1333225A Furnace-door frame
US1344249A Sewer-cleaning apparatus
US1041188A Steam-generator.
US1010702A Sectional rod.
US903022A Sewer-cleaning apparatus.
US969217A Street-flushing apparatus.
US908514A Starting device for wagons.
US768867A Apparatus for cleaning sewer-pipes.
CA910287A Material and method for disposal of semi-liquid waste matter or cellular film sacks for domestic waste control and disposal
CA33442A Weighing scale