Learn more

QUAD CORP

Overview
  • Total Patents
    12
About

QUAD CORP has a total of 12 patent applications. Its first patent ever was published in 1975. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets chemical engineering, environmental technology and machines are FENGYANG HAITAIKE ENERGY ENVIRONMENTAL MAN SERVICES CO LTD, DONG BING JI and FAGERSTA INTERVEX AB.

Patent filings in countries

World map showing QUAD CORPs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Canada 3
#3 Germany 1
#4 United Kingdom 1

Patent filings per year

Chart showing QUAD CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Devries Egbert 10
#2 Vries Egbert De 1

Latest patents

Publication Filing date Title
CA1137409A Removal of odors from gas streams
US4238461A Removal of odors from gas streams
US4206870A Pressure relief valve
US4225566A Process for performing multiple chemical reactions
DE2813403A1 Odorous and offensive vapour treatment - by spraying with water and oxidising agent after removing condensable constituents
CA1095694A Odor control system
GB1534639A Process for the removal of odours from vapours
US4141702A Condensation cleaning of exhaust gases
US4125589A Odor control system
US3965698A Refrigerated structure
US3958020A Bactericidal wash for meat