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MERICHEM CO

Overview
  • Total Patents
    228
  • GoodIP Patent Rank
    43,198
  • Filing trend
    ⇩ 50.0%
About

MERICHEM CO has a total of 228 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 1971. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, basic materials chemistry and materials and metallurgy are ORMAT PROCESS TECHNOLOGIES INC, PENNSYLVANIA PETROLEUM RES COR and PARTEX SERVICES PORTUGAL SERVI.

Patent filings per year

Chart showing MERICHEM COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Tiejun 44
#2 Varadi Tom 20
#3 Brient James A 19
#4 Gomach Jeffrey Bruce 18
#5 Turner V Keith 18
#6 Nagl Gary J 18
#7 Strunk Marvin H 14
#8 Hardy K Michael 11
#9 Jackson David 10
#10 Medine Marie-Cecile 10

Latest patents

Publication Filing date Title
WO2020018172A1 Hydrogen sulfide removal process by use of a sulfur dye catalyst
US10456711B1 Liquid-liquid mass transfer process and apparatus
US2020116003A1 Hydrogen sulfide removal process
US2019262769A1 Hydrogen sulfide removal process
US2019218462A1 Contactor and separation apparatus and process of using same
US2017369790A1 Oxidation process
TW201412371A Contactor and separation apparatus and process of using same
US2014144811A1 Treating sulfur containing hydrocarbons recovered from hydrocarbonaceous deposits
EP2512984A1 Three phase sulfur separation system with interface control
TW201224132A Hydrocarbon treatment process and aqueous solution composition for treatment
US2012107205A1 High pressure reduction-oxidation desulfurization process
US7951353B1 Flow control method and apparatus for a continuous multiple zone mass transfer
US2011127194A1 Hydrocarbon Treatment Process
US2010122950A1 Apparatus for treating a waste stream
US2009065434A1 Removal of residual sulfur compounds from a caustic stream
US2008308503A1 Separation process
US7279148B1 Oxidizer and oxidation process for a desulphurization process
MXPA01000323A Indirect-fired, all ceramic pyrochemical reactor.
PL345454A1 Indirect-fired, all ceramic pyrochemical reactor
US5997731A Process for treating an effluent alkaline stream having sulfur-containing and phenolic compounds