Learn more

KROLL WILLIAM J

Overview
  • Total Patents
    12
About

KROLL WILLIAM J has a total of 12 patent applications. Its first patent ever was published in 1943. It filed its patents most often in United States and Canada. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and environmental technology are XIANGGUANG COPPER CO LTD, COOGEE TITANIUM PTY LTD and JIANGSU BGRIMM METAL RECYCLING SCIENCE & TECH CO LTD.

Patent filings in countries

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

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Kroll William J 12

Latest patents

Publication Filing date Title
US2548897A Process for melting hafnium, zirconium, and titanium metals
US2465730A Method of producing metallic sodium
US2522679A Method of producing titanium alloys
US2441770A Process for making iron powder
US2396792A Refining nickel
US2396793A Scrap metal recovery process
US2396794A Refining nickel
US2413411A Process for producing iron powder
CA441146A Nickel refining method
CA441144A Nickel refining method
CA441145A Scrap metal recovery process
CA493610A Method of producing titanium alloys