Learn more

ROLFSEN OLE

Overview
  • Total Patents
    29
About

ROLFSEN OLE has a total of 29 patent applications. Its first patent ever was published in 1922. It filed its patents most often in Denmark, Canada and Switzerland. Its main competitors in its focus markets materials and metallurgy and thermal processes are SALZHEMMENDORF DOLOMITWERK, DOLOMITWERKE GES MIT BESCHRAEN and INTERNAT CEMENT CORP.

Patent filings in countries

World map showing ROLFSEN OLEs patent filings in countries
# Country Total Patents
#1 Denmark 11
#2 Canada 10
#3 Switzerland 3
#4 Greece 2
#5 Austria 1
#6 Belgium 1
#7 Germany 1

Patent filings per year

Chart showing ROLFSEN OLEs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Materials and metallurgy
#2 Thermal processes

Focus technologies

# Technology
#1 Furnaces
#2 Building materials

Top inventors

# Name Total Patents
#1 Rolfsen Ole 27
#2 Rolfsen Per 2
#3 Ole Rolfsen 2

Latest patents

Publication Filing date Title
CA460682A Draught sintering apparatus
CA443136A Draught sintering apparatus
CA371739A Cement production
CA393828A Iron oxide reduction
CA614792A Method and apparatus for producing ball-like nodules of fine-grained ores and minerals
CA228005A Rock cutting tool
CA263152A Rotating tool
CA577208A Sintering apparatus
CA530403A Method and apparatus for draft sintering
CA279781A Lubricant