Learn more

DUNBAR ALEXANDER

Overview
  • Total Patents
    22
About

DUNBAR ALEXANDER has a total of 22 patent applications. Its first patent ever was published in 1886. It filed its patents most often in Spain, United Kingdom and United States. Its main competitors in its focus markets machine tools, machines and transport are E & B HOLMES MACHINERY CO, BRIGGS SAMUEL and WIEMERS KARL HEINZ.

Patent filings in countries

World map showing DUNBAR ALEXANDERs patent filings in countries
# Country Total Patents
#1 Spain 6
#2 United Kingdom 5
#3 United States 5
#4 Canada 4
#5 Austria 1
#6 France 1

Patent filings per year

Chart showing DUNBAR ALEXANDERs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Dunbar Alexander 15
#2 Shaw Howard Wilmot 1
#3 Alexander Dunbar 1
#4 Dunbar Andrew 1
#5 Dunbar Elexander Jr 1
#6 Dunbar William 1

Latest patents

Publication Filing date Title
US929662A Logging-engine.
CA121874A Logging engine
GB190706438A Improvements in Machines for Backing and Hollowing Cask Staves.
CA92877A Gang saw
US850144A Stave-jointing machine.
GB190208424A Improvements in Machinery for Jointing Staves for Casks or the like.
GB190006439A Improvements in Stave Dressing Machinery or Apparatus.
US658353A Machine for dressing staves.
CA68016A Process of and apparatus for pourifying and condensing tannin liquor
US657312A Machinery for trimming, dressing, and planing staves.
GB189725486A Improvements in the Method of, and in Machinery for Planing, Trimming, or Dressing Staves for Casks.
US702932A Machinery for jointing or finishing stave-blanks for casks.
GB189512485A Improvements in Apparatus for Trussing, Croizing, and Chamfering Casks.
CA29648A Machine for making casks and barrels