Inventor · disambiguated record
Robert Ludwigson
Also filed as: LUDWIGSON ROBERT · LUDWIGSON ROBERT G
5 granted patents·2 pending applications·105 citations·filing 1979–2012
82Inventor score
Files withGVA CONSULTANTS AB2C R O1LUDWIGSON ROBERT1MESSER GRIESHEIM IND INC1MG SYSTEMS & WELDING INC1
Top patents by PatentIndex Score
7 records- 0187US7628225B2Drilling deviceGVA CONSULTANTS AB·Filed 2008·Granted Dec 8, 2009·48 cites·15 claims
- 0278US6247421B1Method for DP-conversion of an existing semi-submersible rigGVA CONSULTANTS AB·Filed 2000·Granted Jun 19, 2001·21 cites·30 claims
- 0360US4923527AApparatus and method for slag-free cutting of billets and the likeMESSER GRIESHEIM IND INC·Filed 1989·Granted May 8, 1990·18 cites·10 claims
- 0445US4266989ACutting tool guiding system for metal cutting machinesC R O·Filed 1979·Granted May 12, 1981·8 cites·5 claims
- 0535US6060679AMethod and apparatus for disposal of edge trim scrap cut from a metal pieceMG SYSTEMS & WELDING INC·Filed 1999·Granted May 9, 2000·10 cites·10 claims
- 0633US2001026733A1Low heave motion semi-submersible vesselFiled 2001·Application pending·0 cites
- 0730US2014130440A1Drilling derrick for offshore drilling incorporating a stressed-skin and offshore platformLUDWIGSON ROBERT·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →