Assignee
PROTOL AG
CH8 patents
Top patents by PatentIndex Score
US5720095AFeb 24, 1998
Method and apparatus for producing helically wound lock-seam tubing
PROTOL AG24 citations92
US6561228B1May 13, 2003
Helically wound lock seam tube
PROTOL AG12 citations82
US6513553B2Feb 4, 2003
Helically wound lock-seam tube
PROTOL AG6 citations73
US6085801AJul 11, 2000
Helically wound lock-seam tube
PROTOL AG10 citations73
US6003220ADec 21, 1999
Method and apparatus for producing helically wound lock-seam tubing
PROTOL AG8 citations73
USD376193SDec 3, 1996
Helically wound lock-seam tube
PROTOL AG9 citations73
USD379358SMay 20, 1997
Clinching roller
PROTOL AG2 citations62
US5737832AApr 14, 1998
In and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness
PROTOL AG12 citations59