ROYER WILLIAM R

Overview

Total Patents

13

About

ROYER WILLIAM R has a total of 13 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, machines and machine tools are PHILLIP KRAFT HENRY, BOZKURT EMRAH and OZAKI YASUSHI.

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Patent filings in countries

World map showing ROYER WILLIAM Rs patent filings in countries

#	Country	Total Patents
#1	United States	10
#2	Canada	3

Patent filings per year

Chart showing ROYER WILLIAM Rs patent filings per year from 1900 to 2020

Similar Companies

PHILLIP KRAFT HENRY 97% similarity

BOZKURT EMRAH 96% similarity

OZAKI YASUSHI 95% similarity

WILLIAMS WILLIAM FREDERICK 95% similarity

FUKUNAGA ENGINEERING CO LTD 95% similarity

PRESTON CLARENCE S 95% similarity

BARKER JOHN CHARLES 94% similarity

MCCONKIE HOWARD S 94% similarity

LAWSON LAWRENCE J 94% similarity

PATENT HOLDING LTD 94% similarity

Focus industries

#	Industry
#1	Transport
#2	Machines
#3	Machine tools
#4	Mechanical elements

Focus technologies

#	Technology
#1	Vehicle tyre repairing
#2	Unspecified technologies
#3	Venting or aerating devices
#4	Tools for connecting or disengaging

Top inventors

#	Name	Total Patents
#1	Royer William R	13

Latest patents

Publication	Filing date	Title
US2431709A	1944-03-08	Tire chain
US2363998A	1942-01-30	Tire chain connector
US2311621A	1941-03-15	Tire chain and its application
US2328680A	1940-10-11	Tire chain tool
US2316718A	1939-09-08	Tire chain
US1812610A	1929-08-10	Auxiliary apparatus for tire valves
US1629972A	1923-08-30	Auxiliary valve for pneumatic-tire valve stems
US1512044A	1923-08-17	Casing or cover for pneumatic-tire valve stems
US1425545A	1921-07-20	Locking device for valve stems
US1408959A	1921-02-08	Cap for pneumatic-tire valves
CA415566A	None	Tire chain tool
CA230401A	None	Locking device for valve stems
CA413791A	None	Tire chain