Assignee

HOEFFGEN WALTER

DE·2 granted patents·0 citations·filing 2009–2012

Technology mixB21B2 B21C1

Top patents by PatentIndex Score

2 records

0135US9067249B2Tapered-roll stand for making seamless pipeHOEFFGEN WALTER·Filed 2012·Granted Jun 30, 2015·0 cites·6 claims
0234US8904839B2Method of and rolling mill for making seamless steel pipeHOEFFGEN WALTER·Filed 2009·Granted Dec 9, 2014·0 cites·9 claims

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