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WALTER M WEIL

Overview
  • Total Patents
    75
About

WALTER M WEIL has a total of 75 patent applications. Its first patent ever was published in 1946. It filed its patents most often in Canada, United States and United Kingdom. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and environmental technology are CONS MINING & SMELTING COMPANY, STANLEY ISAAC LEVY and PANG LIANHONG.

Patent filings in countries

World map showing WALTER M WEILs patent filings in countries
# Country Total Patents
#1 Canada 27
#2 United States 23
#3 United Kingdom 16
#4 Germany 9

Patent filings per year

Chart showing WALTER M WEILs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cooper Hugh S 39
#2 Schaefer James C 12
#3 Cooper Hugh Spencer 11
#4 Schmidt Ernest C 10
#5 Schaefer James Clement 3
#6 Weil Walter M 3
#7 Schmidt Ernest Charles 2
#8 Walter Bonsack 2
#9 Sweeney Victor D 1
#10 Stewart Wilfred H 1

Latest patents

Publication Filing date Title
GB1108659A Deposition of boron on metal filaments
US3551105A Purification of elemental boron
GB1064093A Purification of boron
US3144327A Copper-boron alloys and method of making same
US3137647A Purification of boron
US3028233A Recovery of manganese from metallurgical slags, dusts, and ores
GB886466A Deposition of boron from fused salt baths
US2984605A Deposition of boron from fused salt baths
US2964397A Copper-boron alloys
DE1132734B Process for the extraction of metallic manganese from metallurgical dusts, slag and ores
GB880017A Recovery of manganese from metallurgical slags, dusts and ores
US2918417A Production of boron by fused salt bath electrolysis
GB822537A Production of chromium by low-pressure reduction of oxides
US2877110A Recovery of manganese from metallurgical slags, dusts and ores
US2850378A Production of chromium by low-pressure reduction of oxides
US2831761A Method for producing low-carbon ferrochromium
GB827471A Treating titanium oxide ore
GB827470A Treatment of titanium dioxide ores
GB821922A Improvements in or relating to a process for recovering manganese values from metalliferous material containing manganese and iron
US2848303A Production of lower oxides of titanium