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KROFCHAK DAVID

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    239,599
About

KROFCHAK DAVID has a total of 19 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Canada, United States and Australia. Its main competitors in its focus markets environmental technology, materials and metallurgy and machines are HOLLUX SA, DARLOW LLOYD & SONS LTD and INST OF RESOURCES COMPREHENSIVE UTILIZATION GUANGDONG ACADEMY OF SCIENCES.

Patent filings in countries

World map showing KROFCHAK DAVIDs patent filings in countries

Patent filings per year

Chart showing KROFCHAK DAVIDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Krofchak David 14
#2 Berardi Roberto 1
#3 Krofchak D 1
#4 Deibitsudo Kurofuchiyaku 1

Latest patents

Publication Filing date Title
CA2872212A1 Method of making a supplementary cementing material for concrete construction from base metal smelter slags
US2007209476A1 Treatment of base metal smelter slag
CA2309233A1 Method of making cement from tailings or rock fines containing silicate or siliceous compounds
CA2178672A1 Method of making concrete from base metal smelter slag
CA2160832A1 Method of treating steel mill waste
US4279635A Process for treating phosphatic clay suspensions
JPS552790A Treatment of incineration sewage sludge ash
CA1108866A Process for the treatment of incinerated sewage sludge ash
ES470536A3 Procedure for the treatment of residual liquid containing pollutant compounds (Machine-translation by Google Translate, not legally binding)
AU3237178A A process for treating sewage sludge to produce soil-like material
US4110212A Method of treating a waste liquid containing polluting compounds
CA1003777A Solidification of tailings from oil sands
US3575711A Process for pickling and regenerating