Inventor · disambiguated record
Jan-Gunnar Hedlund
Also filed as: HEDLUND JAN · HEDLUND JAN-GUNNAR
13 granted patents·470 citations·filing 1985–2015
93Inventor score
Top patents by PatentIndex Score
13 records- 0196US5112165ATool for cutting solid materialSANDVIK AB·Filed 1990·Granted May 12, 1992·162 cites·14 claims
- 0289US4921310ATool for breaking, cutting or working of solid materialsHEDLUND JAN GUNNAR·Filed 1988·Granted May 1, 1990·96 cites·6 claims
- 0378US4784517AMethod and device for working of road surfacesSANDVIK AB·Filed 1985·Granted Nov 15, 1988·45 cites·16 claims
- 0472US10113301B2Arrangement for the removable coupling of a tool with a manoeuvrable arm of a working machineBROKK AB·Filed 2015·Granted Oct 30, 2018·3 cites·13 claims
- 0572US5074623ATool for cutting solid materialSANDVIK AB·Filed 1990·Granted Dec 24, 1991·40 cites·22 claims
- 0651US4705321ADevice for supplying fluid to a tool for breaking hard materialSANTRADE LTD·Filed 1986·Granted Nov 10, 1987·17 cites·11 claims
- 0747US5435401ADown-the-hole rock drillSANDVIK AB·Filed 1993·Granted Jul 25, 1995·26 cites·19 claims
- 0847US5284216ADown-the-hole drill tool for drilling in advance of a casing tubeSANDVIK AB·Filed 1991·Granted Feb 8, 1994·22 cites·8 claims
- 0945US4976496AValve openable in response to displacement of a cutting toolSANDVIK AB·Filed 1989·Granted Dec 11, 1990·13 cites·15 claims
- 1043US5358063ADrill bitSANDVIK AB·Filed 1991·Granted Oct 25, 1994·17 cites·11 claims
- 1137US5575342APercussion drill bit, an insert for use therein and a method of drilling a boreSANDVIK AB·Filed 1995·Granted Nov 19, 1996·15 cites·10 claims
- 1234US4733915ADevice for supplying fluid at tools for breaking solid materialSANTRADE LTD·Filed 1986·Granted Mar 29, 1988·6 cites·9 claims
- 1330US6102141ARock drill having an internal flushing channelSANDVIK AB·Filed 1998·Granted Aug 15, 2000·8 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →