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ST JOSEPH LEAD CO

Overview
  • Total Patents
    169
About

ST JOSEPH LEAD CO has a total of 169 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets materials and metallurgy, machines and electrical machinery and energy are NEW JERSEY ZINC CO, KROLL WILLIAM J and CHAOYANG JINDA TITANIUM CO LTD.

Patent filings in countries

World map showing ST JOSEPH LEAD COs patent filings in countries
# Country Total Patents
#1 United States 73
#2 Canada 40
#3 United Kingdom 21
#4 Germany 14
#5 France 13
#6 Spain 3
#7 Belgium 2
#8 Austria 1
#9 Australia 1
#10 Norway 1

Patent filings per year

Chart showing ST JOSEPH LEAD COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bowman Robert S 23
#2 Najarian Herand K 18
#3 Isbell William T 12
#4 Weaton George F 12
#5 Rose Michael V 8
#6 Long Carleton C 4
#7 Kanzelmeyer James H 4
#8 Warnes Don E 4
#9 Lund Robert E 4
#10 Samuel Bowman Robert 4

Latest patents

Publication Filing date Title
US3551356A Treatment of zinc oxide
US3570105A Method of making non-bubbling dispersion-strengthened lead products
US3738447A Free-standing lead sound barriers
US3582383A Modified zinc oxide composition
US3582316A Process for storing partially oxidized lead powders
US3553995A Extrusion process
US3515686A Electrically conductive zinc oxide
US3538022A Electrically conductive zinc oxide
US3538023A Electrically conductive zinc oxide
US3541029A Electrically conductive zinc oxide
GB1135719A An improved method of making a lead or lead alloy structure such as a sheet or foil
ES336620A1 Method for making lead particles of oxide coated. (Machine-translation by Google Translate, not legally binding)
US3589172A Method and apparatus for characterizing materials
GB1114509A Electrically conductive zine oxide
US3475351A Electrically conductive zinc oxide
US3506550A Electrolytic process of recovering nickel and cadmium from spent battery plates
US3509073A Electrically conductive zinc oxide
US3439411A Joining of dispersion strengthened lead
US3310438A Dispersion strengthened lead battery grids
US3499800A Method of making lead particles for non-bubbling dispersion strengthened lead