Inventor · disambiguated record

Steffen Keitel

Also filed as: KEITEL STEFFEN

3 granted patents·19 citations·filing 2004–2013

67Inventor score

Technology areasB23K B21C

Files withMANNESMANN ROEHREN WERKE AG1 SALZGITTER MANNESMANN LINE PIPE GMBH1 V&M DEUTSCHLAND GMBH1

Top patents by PatentIndex Score

3 records

0175US7012217B2Method and apparatus for making welded large pipesMANNESMANN ROEHREN WERKE AG·Filed 2004·Granted Mar 14, 2006·10 cites·24 claims
0269US8373083B2Method for connecting thick-walled metal workpieces by weldingV&M DEUTSCHLAND GMBH·Filed 2008·Granted Feb 12, 2013·5 cites·20 claims
0365US10099319B2Device for connecting the ends of pipes made of steel by means of an orbital welding processSALZGITTER MANNESMANN LINE PIPE GMBH·Filed 2013·Granted Oct 16, 2018·4 cites·11 claims

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