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WEBB JOHN FREDERICK

Overview
  • Total Patents
    14
About

WEBB JOHN FREDERICK has a total of 14 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United Kingdom, Canada and United States. Its main competitors in its focus markets surface technology and coating and chemical engineering are PAOLO PESTALOZZA, PROIZV OB BRUSS NII MELIORATSI and ACKER CHARLES ERNEST.

Patent filings in countries

World map showing WEBB JOHN FREDERICKs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 Canada 2
#3 United States 1

Patent filings per year

Chart showing WEBB JOHN FREDERICKs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Webb John Frederick 14
#2 Chapman John 6
#3 Lilley Joseph Edward 6
#4 Williams William Willoughby 3
#5 Tarbutt Percy 2

Latest patents

Publication Filing date Title
CA166964A Bleaching apparatus
US1175572A Apparatus for bleaching by electrolysis.
GB191420714A Improvements in and relating to an Apparatus for Bleaching by Electrolysis.
GB190909268A Improvements in and relating to Agitating Devices particularly applicable for use with Gritty Material.
GB190821474A Improvements in filtering Apparatus for use in connection with the Washing of Slimes and for other similar purposes.
GB190408605A Improved Filtering-apparatus for the Extraction of Liquid from Finely Crushed Minerals or the like.
GB190406832A Improvements in and relating to the Electrolytical Extraction of Metals from Solutions.
GB190105344A Improvements in Concentrating Tables for the Treatment of Minerals and the like.
GB190105265A Improvements in and relating to the Recovery of Precious Metals by Electrolysis.
GB189805800A Improvements in Stamp Batteries.
CA60681A Means of supporting and rotating barrels, cylinders and the like
GB189718484A Improvements in Means for Supporting and Rotating Barrels, Cylinders, and the like.
GB189701486A Improvements in Roller Crushing Mills.
GB189701485A Improvements in Stone Crushers.