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BUHRER ERWIN

Overview
  • Total Patents
    124
About

BUHRER ERWIN has a total of 124 patent applications. Its first patent ever was published in 1953. It filed its patents most often in Canada, France and United States. Its main competitors in its focus markets materials and metallurgy, thermal processes and chemical engineering are BUEHRER ERWIN, HERBERT FRED and NIELSEN FRIEDRICH.

Patent filings in countries

World map showing BUHRER ERWINs patent filings in countries
# Country Total Patents
#1 Canada 22
#2 France 20
#3 United States 20
#4 United Kingdom 13
#5 Sweden 12
#6 Spain 11
#7 Belgium 10
#8 Italy 9
#9 Austria 6
#10 Australia 1

Patent filings per year

Chart showing BUHRER ERWINs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Buhrer Erwin 44
#2 Wernli Max 5
#3 Buhrer E 3
#4 Maurer Emil 3
#5 Gotz Walter 2
#6 Wernli M 2
#7 Keller Franz 2
#8 Keller F 1
#9 Theodor Bachtold 1
#10 Paul Haberlin Hans 1

Latest patents

Publication Filing date Title
US4114678A Mold forming apparatus with mold flask bracer means
US4063586A Mold forming apparatus with mold flask stabilizing means
ES455352A1 Machine for producing casting mould parts
US4084709A Device for lifting-lowering and rotating operations
US4077461A Apparatus for effecting simultaneous free-fall jolting and squeezing of foundry molds during production thereof
US3997088A Jet deflecting and energy dissipating pouring device
US3989086A Method of and apparatus for the production of mold parts for foundries
ES429602A1 Pattern device including an upper trough pattern for the manufacture of the upper part of a foundry mold
US3974872A Method and apparatus for production of casting molds
ES398090A1 Procedure for the electrostatic depuration of cubilote fumes. (Machine-translation by Google Translate, not legally binding)
FR2103897A5 Melting iron/steel - in acid lined converters by induction heating
FR2034928A7 Separator used between mould and master - in sand casting process
GB1273214A Casting mold
US3601161A Method and apparatus for dosing two types of molding sand into the molding box of a foundry mold
GB1090537A Improvements in or relating to moulding machines
US3350083A Tilting mechanism for induction furnace
GB1071793A Induction furnace construction
GB936688A Improved apparatus for delivering controlled quantities of material to a receiving station
US3015864A Dowel guide with plastic filler material
GB856554A Device for handling a top distributor pattern for a foundry mould