Inventor
BETZNER WILLIAM E
US6 patents
Patents
6 patentsUS6068804AMay 30, 2000
Process for making expansion joint material
CELOTEX CORP38 citations89
US4407771AOct 4, 1983
Blow line addition of isocyanate binder in fiberboard manufacture
CELOTEX CORP34 citations89
US4781558ANov 1, 1988
Apparatus for making an embossed gypsum panel
CELOTEX CORP24 citations80
US4842786AJun 27, 1989
Method for producing an embossed gypsum panel
CELOTEX CORP15 citations71
US4402896ASep 6, 1983
Blow line addition of thermosettable binder in fiberboard manufacture utilizing cooled nozzle
CELOTEX CORP15 citations70
US4533436AAug 6, 1985
Apparatus for blow line addition of thermosettable binder in fiberboard manufacture including a cooling nozzle
CELOTEX CORP6 citations59