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DONALD ROBERT

Overview
  • Total Patents
    12
About

DONALD ROBERT has a total of 12 patent applications. Its first patent ever was published in 1914. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets consumer goods, optics and medical technology are COVER HARVEY S, ELFRIEDE DRAGER and DESIGN REALITY LTD.

Patent filings in countries

World map showing DONALD ROBERTs patent filings in countries
# Country Total Patents
#1 United Kingdom 5
#2 United States 3
#3 Canada 2
#4 Denmark 1
#5 Spain 1

Patent filings per year

Chart showing DONALD ROBERTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Donald Robert 11

Latest patents

Publication Filing date Title
US1268696A Respirator or inhaler.
CA183899A Method of storing microscope slides
US1241354A Method of storing microscope-slides.
US1229050A Respirator.
CA180035A Inhaler
GB107986A An Improved Method of Kindling Fires.
GB191509956A A Respirator or Inhaler.
GB191510701A A Method of Storing Microscope Slides.
GB191507932A A Respirator or Inhaler.
GB191410349A Improvements in Socks for Boots and Shoes.