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WALKER WILLIAM J

Overview
  • Total Patents
    13
About

WALKER WILLIAM J has a total of 13 patent applications. Its first patent ever was published in 1901. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets agriculture, computer technology and electrical machinery and energy are LUOYANG INST OF REFRACTORIES R, GOLDMAN ALEKSANDR M and I S KOSAN KK.

Patent filings in countries

World map showing WALKER WILLIAM Js patent filings in countries
# Country Total Patents
#1 United States 8
#2 Canada 4
#3 United Kingdom 1

Patent filings per year

Chart showing WALKER WILLIAM Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Walker William J 12
#2 Jones Phillip M 1
#3 Saccoccia Michael E 1
#4 Balabanos Vasileios 1
#5 Walker Roland M 1
#6 Jansen Kenneth 1
#7 Shah Paras A 1
#8 O'D Duggan Terence 1
#9 Osten James H 1
#10 Izak Archer Alva 1

Latest patents

Publication Filing date Title
US2011077141A1 Alumina ceramic for spark plug insulator
US2005257010A1 Method and system for migrating memory segments
GB8903360D0 International athletics board game
US2868448A Apparatus for the determination of polynomial functions and the solution of algebraic equations
US2643483A Wild game calling device
US1301202A Hand oil-cup and chain pipe wrench combined.
US1271397A Boll-weevil destroyer.
US1268302A Attachment for harvester-headers.
US685657A Road scraper and grader.
CA38030A Nut lock
CA623449A Means for the continuous proportioning of two or more liquids
CA196339A Wrench
CA36513A Car coupler