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SOUTHWESTERN ENG CO

Overview
  • Total Patents
    82
About

SOUTHWESTERN ENG CO has a total of 82 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets chemical engineering, machines and machine tools are JOHN SPEIGHT, XINYING ENVIRONMENTAL TECH HUBEI CO LTD and RUSSEL FINEX.

Patent filings in countries

World map showing SOUTHWESTERN ENG COs patent filings in countries
# Country Total Patents
#1 United States 32
#2 Canada 14
#3 France 11
#4 Germany 10
#5 United Kingdom 9
#6 Sweden 2
#7 Switzerland 1
#8 Finland 1
#9 Iceland 1
#10 Italy 1

Patent filings per year

Chart showing SOUTHWESTERN ENG COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mckibben Richard K 10
#2 Swallow Douglas M 7
#3 Max Kraut 3
#4 Yarden Abraham L 3
#5 Robert Lord 3
#6 Morwood Swallow Douglas 3
#7 Racine Bill A 3
#8 Coulter Clarence D 3
#9 Wright Howard W Jr 2
#10 Swallow Douglas Morwood 2

Latest patents

Publication Filing date Title
US4702308A Manifold
US4473112A Manifold
US4016835A Moisture separator-reheater
DE1619811A1 Method and device for drying solids
US3425554A Means for improving performance of separator screens
US3421623A Vibratory separator
US3476245A Vibratory separator
US3352418A Remountable separator screen
US3339896A Stirring device
US3422577A Self-discharging finishing mill
US3349456A Clamp band tensioning device
GB1110558A Vibratory separators
GB1116980A Machine for pulverizing or surface-treating material
US3366239A Self-cleaning screen structure for vibratory separators
GB1009642A A separator structure
GB1009641A Rapid discharge vibratory separator
DE1192035B Vibrating sieve
DE1193347B Device and method for fastening and tensioning a sieve fabric
GB999032A Tensioning means for separator screens
US3407542A Automatic unloader for finishing mills