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DOUGLAS WHIMSTER CHISHOLM

Overview
  • Total Patents
    13
About

DOUGLAS WHIMSTER CHISHOLM has a total of 13 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, Germany and France. Its main competitors in its focus markets machine tools and thermal processes are VASSENA FILIERE S R L, ZHONGYE WELDING TECHNOLOGY CO LTD and NOVOALTAJSKIJ K B AVTOMATICHES.

Patent filings in countries

World map showing DOUGLAS WHIMSTER CHISHOLMs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 Germany 3
#3 France 3

Patent filings per year

Chart showing DOUGLAS WHIMSTER CHISHOLMs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machine tools
#2 Thermal processes

Top inventors

# Name Total Patents
#1 Chisholm Douglas Whimster 3

Latest patents

Publication Filing date Title
GB269273A Improvements in the manufacture of butt and lap welded tubes
GB263323A Improvements in the manufacture of butt and lap welded tubes
GB243858A Improvements in the manufacture of welded iron and steel tubes
GB229529A Improvements in tube welding machines
GB214285A Improvements in liquid fuel furnaces
GB159539A Improvements in the manufacture of welded iron and steel tubes
GB143343A Improvements in the manufacture of lap welded tubes