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FILTROL CORP

Overview
  • Total Patents
    133
About

FILTROL CORP has a total of 133 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, Canada and Japan. Its main competitors in its focus markets chemical engineering, basic materials chemistry and agriculture are DUFRESNE PIERRE, NIPPON KECCHEN KK and NIPPON KETJEN CO LTD.

Patent filings in countries

World map showing FILTROL CORPs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Stamires Dennis 25
#2 Alafandi Hamid 22
#3 Gary Wright W 16
#4 Secor Robert B 10
#5 Lim John 7
#6 Burgesser Frederick W 6
#7 Masami Kayamoto 6
#8 Brady Michael 5
#9 Gary Wright Wesley 4
#10 Scherzer Julius 4

Latest patents

Publication Filing date Title
GB8630223D0 System detector and method for sensing a parameter of a medium by means of radiation attenuation
US4362652A Cracking catalysts containing silica-alumina gels
US4313923A Method of producing pseudoboehmites
US4347164A Mono- and poly-metallic supported catalysts
US4297325A Method of producing pseudoboehmite from aluminum salt solutions
US4356113A Substrates with calibrated pore size and catalysts employing the same
US4332782A Method of producing pseudoboehmite
US4325847A Use of additional alumina for extra zeolite stability in FCC catalyst
US4269815A Method of exchanging sodium zeolite
US4333857A Attrition resistant zeolite containing catalyst
US4325845A Zeolite catalysts and method of producing the same
JPS55165145A Hydrogenating desulfurizing catalyst and its preparation
US4228137A Method of producing faujasite zeolites employing seeding techniques
US4310441A Large pore silica-alumina gels and method of producing the same
US4388222A Ni/Co Mo P On titania-alumina hydrodesulfurizing catalyst
US4264474A Ammoniated silica-alumina gel and catalyst containing the same and processes for producing same
US4252684A Crystallized silica-alumina cogel and catalyst employing the same
US4234457A Crystallized silica-alumina cogel and catalyst employing the same
US4238361A Ammoniated silica-alumina gel and catalyst containing the same and processes for producing same
US4259210A Crystalline alumino silicate-silica-alumina gel hydrocarbon conversion catalysts and processes for producing same