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G & J WEIR LTD

Overview
  • Total Patents
    460
About

G & J WEIR LTD has a total of 460 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets engines, pumps and turbines, chemical engineering and thermal processes are PHILIPP HILGE FA, SUPERSTILL TECHNOLOGY INC and MICHIANA PRODUCTS CORP.

Patent filings in countries

World map showing G & J WEIR LTDs patent filings in countries

Patent filings per year

Chart showing G & J WEIR LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Harold Hillier 21
#2 Lang Charles Russell 15
#3 Hillier Harold 13
#4 James Sim 12
#5 Randell Forrest Thomson 11
#6 Arkless George Frederick 10
#7 Randell F 10
#8 Mcalpine Thomas 10
#9 Silver Robert Simpson 10
#10 Randell Forrest Thompson 7

Latest patents

Publication Filing date Title
GB1171823A Water Distillation Plant.
GB1139238A Water distillation plant
GB1126444A Improvements in or relating to steam power plants
GB1194676A Filtering Press
GB1065186A Apparatus for expressing liquids from materials
GB1158322A Improvements in or relating to Heat Exchangers.
GB1063724A Improvements relating to presses for filtering
GB1059419A Improvements in or relating to fluid machines
GB1067020A Self-tightening pressure vessel closure
GB1107039A Multi-stage rotary fluid-flow machines
GB1101402A Brine distillation
GB1039473A Multi-stage fluid machine
GB1062275A Seal devices for chambers, for example pressure chambers
GB1093948A Combined conveyor and filter device
US3202134A Regeneration of the heat of boiler flue gases
GB1025889A Control of distillation plant
GB1014431A Apparatus for the control of fluid flow
GB1052263A Improvements relating to Proximity Indicating Devices
US3128709A System for pumping liquids into and out of tanks
GB1032933A Apparatus for expressing liquids from materials