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COTTRELL RES INC

Overview
  • Total Patents
    209
About

COTTRELL RES INC has a total of 209 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets chemical engineering, machines and thermal processes are HEINRICH SOMMERMEYER, RICHARDS CLYDE N and TOBISU TORAO.

Patent filings per year

Chart showing COTTRELL RES INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hall Herbert J 18
#2 Roberts Lawrence M 9
#3 Hoesen Harold E Van 8
#4 Walker Alan B 8
#5 Helfritch Dennis J 8
#6 Gleason Robert J 8
#7 Richman Mark 7
#8 Feldman Paul L 7
#9 Jakoplic Richard 6
#10 Streuber Rudolf G 6

Latest patents

Publication Filing date Title
CA2076219A1 Discharge electrode stabilizer
CA2067903A1 Method of detecting, identifying, and alarming short-circuited outputs in electrostatic precipitator rapper and vibrator controls
US5165902A Method and apparatus for reducing nitrogen dioxide emissions in a dry sodium scrubbing process using humidification
US5213780A Method for nitrogen oxide reduction and flue gas reheating
US5156658A Electrostatic precipitator gas inlet plenum having a corrugated perforated plate
US5205177A Method and apparatus for gas monitoring
DE4014606A1 REDUCTION OF NO (DOWN ARROW) X (DOWN ARROW) BY STAGE FUEL COMBUSTION WITH ACETYLENE-LIKE FUELS
US4985219A Removal of nitrogen oxides from waste gases
US4960445A Process for removing SO2 and fly ash from flue gas
US4832806A Radiation for the selective destruction of toxic molecules on solid surfaces
US4883570A Apparatus and method for enhanced chemical processing in high pressure and atmospheric plasmas produced by high frequency electromagnetic waves
DE3607314A1 Highly effective tower packing having a high capacity
US4705653A Splash bar for cooling tower fill assembly
DE3534060A1 Method of operating flue gas collectors at reduced temperature
US4525142A Process for treating flue gas with alkali injection and electron beam
US4559211A Method for reduced temperature operation of flue gas collectors
US4451411A Support means for transverse fill for cooling towers
US4406762A Electron beam coal desulfurization
US4395448A Filling sheet attaching means for gas and liquid contact apparatus and method of assembly of plural parallel filling sheets
US4388282A Method for regeneration of sodium sulfite from spent flue gas desulfurization processes