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SIGNA CHEMISTRY INC

Overview
  • Total Patents
    88
  • GoodIP Patent Rank
    64,639
  • Filing trend
    ⇩ 33.0%
About

SIGNA CHEMISTRY INC has a total of 88 patent applications. It decreased the IP activity by 33.0%. Its first patent ever was published in 2005. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Canada. Its main competitors in its focus markets environmental technology, chemical engineering and materials and metallurgy are CONOCO INC, M I DRILLING FLUIDS UK LTD and MARATHON OIL CO.

Patent filings per year

Chart showing SIGNA CHEMISTRY INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lefenfeld Michael 75
#2 Wallace Andrew P 20
#3 Krumrine Paul H 14
#4 Dye James L 13
#5 Michael Lefenfeld 12
#6 Melack John M 12
#7 Imran Muhammad 8
#8 Romney Gregory Arthur 8
#9 Knorr Kelvin Dean 8
#10 Melack John 7

Latest patents

Publication Filing date Title
WO2018183357A1 Methods for delivering water reactive chemicals to subterranean reservoirs for enhanced crude oil recovery
CA2927007A1 Alkali metal silicides for high temperature wettability improvement in carbonate reservoirs
EP2970337A1 Treatment of alkali silica gel and alkali porous metal oxide compositions
GB201500742D0 Use of metal silicides in hydrocarbon production and transportation
SG11201404665UA Water reactive hydrogen fuel cell power system
CA2863839A1 Hydrogen generation systems and methods utilizing sodium silicide and sodium silica gel materials
CN103889918A Foamed cement compositions containing metal silicides usable in subterranean well operations
WO2012151582A1 Water reactive hydrogen generation system and method with separation of waste products from water reactive materials
CA2817086A1 Water reactive hydrogen fuel cell power system
CN102741199A Catalytic dehydration of alcohols using non-volatile acid catalysts
CA2787926A1 Catalytic dehydration of alcohols using phase pure, calcined single-and multi-site heterogeneous catalysts
EP2205542A2 Use of alkali metal-silica gel (m-sg) materials in solvent and monomer drying and purification for their use in anionic polymerization
EP2081682A2 Lithium reagent porous metal oxide compositions
EP2546193A2 Silicide compositions containing alkali metals and methods of making the same