Inventor · disambiguated record

Janek Porowski

Also filed as: POROWSKI JANEK · POROWSKI JANEK S

3 granted patents·16 citations·filing 1981–1999

62Inventor score

Technology areasB21D F16J Y10S

Files withCOLUMBIAN CHEM2 ODONNELL & ASS1

Top patents by PatentIndex Score

3 records

0135US5538261AMechanical heat-exchange tube sealing systemCOLUMBIAN CHEM·Filed 1994·Granted Jul 23, 1996·11 cites·20 claims
0229US4434840AExpansion joint for reactor or heat exchangerODONNELL & ASS·Filed 1981·Granted Mar 6, 1984·5 cites·2 claims
0321US6189768B1Process and apparatus for pressing an external sleeve onto a tube for enhancing weld designCOLUMBIAN CHEM·Filed 1999·Granted Feb 20, 2001·0 cites·20 claims

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