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STONE JOHN H

Overview
  • Total Patents
    21
About

STONE JOHN H has a total of 21 patent applications. Its first patent ever was published in 1911. It filed its patents most often in Canada and United States. Its main competitors in its focus markets civil engineering, machines and medical technology are BLUM LOUIS, VOSS PAUL GMBH & CO and NEUHOFER MARTIN.

Patent filings in countries

World map showing STONE JOHN Hs patent filings in countries
# Country Total Patents
#1 Canada 14
#2 United States 7

Patent filings per year

Chart showing STONE JOHN Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stone John H 20
#2 Kelk James 1

Latest patents

Publication Filing date Title
US1778404A Controlling device for awnings
US1613855A Awning fastener
US1469450A Hair comb
US1506686A Roller awning
US1492405A Awning fastener
US1442240A Method of forming rings
US1068016A Stretcher.
CA27252A Tubular lantern
CA29048A Tubular lantern
CA19945A Tubular lantern
CA5768A Air-tight screw cap for coal oil and other cans and fruit jars, and machine for manufacturing the same
CA4475A Improvements in bottoms of milk cans
CA16217A Tubular kerosene lantern
CA8440A Tubular kerosene lantern
CA17653A Tubular lanterns
CA14977A Improvements on tubular lanterns
CA21389A Tubular lantern
CA13825A Bird insect catcher and trap
CA19807A Glove guard for tubular lantern
CA8350A Tubular kerosene lantern