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WOODSOME JOHN O

Overview
  • Total Patents
    19
About

WOODSOME JOHN O has a total of 19 patent applications. Its first patent ever was published in 1921. It filed its patents most often in Canada and United States. Its main competitors in its focus markets textiles and paper, machines and chemical engineering are POIRIER ERNEST A, MUNZINGER CONRAD & CIE AG and FIBRON MACHINE CORP.

Patent filings in countries

World map showing WOODSOME JOHN Os patent filings in countries
# Country Total Patents
#1 Canada 10
#2 United States 9

Patent filings per year

Chart showing WOODSOME JOHN Os patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Woodsome John O 19
#2 Swan John H 2

Latest patents

Publication Filing date Title
US2000546A Paper drying process and apparatus
US1767270A Pressure-regulating valve
US1862130A Venturi steam fitting
US1749406A Valve-controlling apparatus
US1643973A Steam-circulating system for driers
US1715022A Valve-controlling apparatus
US1643972A Steam-circulating system for driers
US1662095A Double-wall venturi steam fitting
US1428198A Steam circulating and regenerating system
CA221536A Steam circulating and regenerating system for drying paper
CA290063A Valve controlling apparatus
CA290868A Pressure regulating valve
CA338935A Paper drying apparatus
CA281276A Valve mechanism
CA288926A Venturi steam fitting
CA275441A Steam circulating system for driers
CA298171A Apparatus for ventilating vapour pockets in paper machine driers
CA311595A Apparatus for circulating liquors and gas in pulp digesters
CA275442A Steam circulating system for driers