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DRAVO LIME CO

Overview
  • Total Patents
    100
About

DRAVO LIME CO has a total of 100 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, materials and metallurgy and environmental technology are BEIJING ZHONGJING JIAMEI ENVIRONMENTAL TECHNOLOGY CO LTD, LIN PING WHA and SANKYO GIKEN KOGYO KK.

Patent filings in countries

World map showing DRAVO LIME COs patent filings in countries

Patent filings per year

Chart showing DRAVO LIME COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 College John W 45
#2 Benson Lewis B 26
#3 Babu Manyam 24
#4 Tseng Shiaw C 13
#5 Lee Yungli J 10
#6 Berisko Daniel W 7
#7 Lani Bruce W 7
#8 Stowe Donald H Jr 6
#9 Forsythe Russell C 5
#10 Stowe Jr Donald H 5

Latest patents

Publication Filing date Title
US6033577A Coordination of liquid-solid separators and fluid tanks
CN1187382A Method for removing sulfur dioxide and nitrogen oxides from combustion gases
EP0858985A2 Aqueous alkaline earth nitrate fertilizer composition and process for making same
CN1177516A Process for removing SO2 and NOx from gaseous stream
US5769940A Process for producing cement and elemental sulfur from a flue gas desulfurization waste product
CA2209759A1 Process for desulfurizing a sulfur-dioxide containing gas
EP0836878A1 Method for removing sulfur dioxide and nitrogen oxides from combustion gases
US5766339A Process for producing cement from a flue gas desulfurization process waste product
US5846286A Method for removing NOx from a gas stream while producing an alkaline earth nitrate fertilizer composition
US5827488A Process for removing SO2 and NOx from a gaseous stream
JPH09122440A Method for scrubbing sulfur dioxide being accompanied with formation of pure product of magnesium sulfite
US5695727A Process for removing sulfur dioxide and nitrogen oxides from a hot gaseous stream with ferrous chelate regeneration
US5683666A Method for the removal of sulfur dioxide and nitrogen oxides for a gaseous stream
US5614158A Process for removing sulfur dioxide from gases and producing gypsum and purified magnesium hydroxide
TW333521B Magnesium-enhanced sulfur dioxide scrubbing with gypsum formation
CA2147059A1 Magnesium-Enhanced Sulfur Dioxide Scrubbing with Gypsum Formation
CA2133694A1 Process for producing magnesium sulfite hexahydrate in a flue gas desulfurization system
US5628811A Method of ameliorating acid soil to enhance plant growth
CN1111337A Horizontal wet scrubbing apparatus and method for removing sulfur dioxide from a gaseous stream
US5384111A Magnesium-enhanced lime scrubbing of sulfur dioxide with production of a high solids content sludge