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DRAVO CORP

Overview
  • Total Patents
    877
About

DRAVO CORP has a total of 877 patent applications. Its first patent ever was published in 1936. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets chemical engineering, basic materials chemistry and materials and metallurgy are GUANGZHOU XINGUANGHE ENVIRONMENTAL PROTECTION TECH CO LTD, HW PROCESS TECHNOLOGIES INC and BOLIDEN CONTECH AB.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Karnofsky George B 26
#2 Briggs Aubrey C 22
#3 Briggs Aubrey Charles 21
#4 Selmeczi Joseph G 17
#5 Jaquay Louis H 17
#6 Reilly Bertram B 15
#7 Anthes John A 15
#8 Binzen Willard 15
#9 Vlnaty Joseph 13
#10 Cappel Fred 12

Latest patents

Publication Filing date Title
GB8814520D0 Improvements in/relating to belt conveyor
US4760968A Integrated dust containment system for rotary crusher/breakers and the like
US4779992A Lime slaker
US4699187A Dust control in hoppers
US4714097A Dust containment system for bulk cargo containers
GB8606047D0 Improvements in or relating to a belt conveyor
US4626418A Removal of SO2 from SO2 -containing gases
US4683029A Circular solvent extractor
US4603225A Process for separating dimethyl ether from a hydrocarbon mixture containing the same
US4655401A Rotary car dumper with lump breaker apparatus
US4572484A Pallet construction for traveling grate machines
US4575055A Circular traveling grate machine
AU4083885A Travelling grate retorting of oil shale
US4563195A Method for treatment of tar-bearing fuel gas
US4609321A Rotary car dumper with dust collection system
GB8427078D0 Improvements in or relating to a pressure resistant enclosure
JPS6019023A Removal of sulfur dioxide from gas stream
CA1211286A Fixed bed gasifier with gas cleaning means and method for producing combustible gases
KR890005279B1 Accelerating slugs of liguid
GB8401454D0 For solvent deasphalting of petroleum