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PERMAGLASS

Overview
  • Total Patents
    125
About

PERMAGLASS has a total of 125 patent applications. Its first patent ever was published in 1954. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, environmental technology and surface technology and coating are FRITZ ECKERT DR, GLASSTECH and BRUCE TECHNOLOGY LLC.

Patent filings in countries

World map showing PERMAGLASSs patent filings in countries
# Country Total Patents
#1 United States 43
#2 Canada 31
#3 United Kingdom 17
#4 France 16
#5 Germany 8
#6 Belgium 3
#7 Sweden 3
#8 Spain 2
#9 Australia 1
#10 Norway 1

Patent filings per year

Chart showing PERMAGLASSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mcmaster Harold A 59
#2 Nitschke Norman C 23
#3 Ashley Mcmaster Harold 5
#4 Mcmaster Ronald A 4
#5 Kawecka John J 4
#6 Nitschke N 3
#7 Joehlin Stanley W 3
#8 Mcmaster H 3
#9 Carl Nitschke Norman 3
#10 Mcmaster Robert G 3

Latest patents

Publication Filing date Title
AU5113473A Method and apparatus for treating glass
US3599864A Control system with variable pulse rate
US3573889A Method for shaping,tempering and laminating glass sheets
US3607173A Method and apparatus for heat treating sheets of glass
US3607187A Method and apparatus for reshaping glass sheets
US3586492A Glass sheet support for a press shaping apparatus
US3475588A Defrosting and deicing window assembly
US3574590A Glass bending mold assembly
US3574976A Method for cutting and grinding glass
US3551130A Apparatus for applying gas against the opposite surfaces of a sheet of glass
US3574588A Assembly for conveying glass sheets through a heat treating furnace
US3607200A Apparatus for conveying glass sheets through adjacent bending and tempering stations
US3523776A Method and apparatus for manufacturing sheet glass
US3488173A Method and apparatus for heat treating and conveying glass sheets on a gas support bed
US3455669A Apparatus for heat treating glass on a fluid support
US3455670A Heat exchange apparatus for treating glass
US3455671A Gas support bed apparatus for treating glass
US3485612A Method and apparatus for heat treating glass on a gas support bed
US3468645A Method and apparatus for shaping glass sheets supported on a gas support bed
US3423198A Method for tempering glass utilizing an organic polymer gaseous suspension