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WALTERS WILLIAM R

Overview
  • Total Patents
    21
About

WALTERS WILLIAM R has a total of 21 patent applications. Its first patent ever was published in 1953. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets machines, civil engineering and agriculture are BRUCE JAMES, SCHREIDT FRANK and WIESENFELD ROBERT S.

Patent filings in countries

World map showing WALTERS WILLIAM Rs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Australia 5
#3 Canada 2

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Walters William R 20
#2 Kulesza Radoslaw 1
#3 Faletti Stephen L 1
#4 Silverman Daniel 1
#5 Conner William D 1
#6 Zimmer David C 1

Latest patents

Publication Filing date Title
US2008179354A1 Guides for folding machines
US4566484A Liquid level control apparatus
US4453563A Non-chattering float controlled pilot operated diaphragm valve
US4469118A Icing preventor
US4344450A Icing preventor
US4352371A Low-high flow rate valve
US4298022A Energy saver control for outdoor water heater
AU1562270A Ball cock valve assembly
AU1562770A Temperature controlling liquid valve
AU1562370A Liquid level control
AU1562670A Ice axe valve
AU1562470A Anti-freeze liquid level regulating control
US3299817A Above ground liquid level control
US2851962A Traction means for railway cars
US2779470A Shaker screen constructions
US2793597A Articulated connection for railway cars
US2900745A Apparatus for and in method of conditioning railway ballast
US2779493A Railway car construction with material handling means
US2787389A Conveyor construction for railway ballast conditioning apparatus
CA846547A Liquid level control