JA

Jan Akerman

SA Sandvik Ab: 11 patents #20 of 518Top 4%
SA Santrade: 2 patents #26 of 173Top 20%
ST Sandvik Rock Tools: 1 patents #17 of 31Top 55%
Overall (All Time): #356,244 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6692690 Cemented carbide body with improved high temperature and thermomechanical properties Thomas Ericson 2004-02-17
6423112 Cemented carbide body with improved high temperature and thermomechanical properties Thomas Ericson 2002-07-23
6126709 Cemented carbide body with improved high temperature and thermomechanical properties Thomas Ericson 2000-10-03
5453241 Cemented carbide body with extra tough behavior Udo Fischer, E. Torbjorn Hartzell 1995-09-26
5441693 Method of making cemented carbide articles and the resulting articles Stefan Ederyd, Robert Beaufoy, Michael John Carpenter, Maxime Bonneau, Jacques Pillot 1995-08-15
5413869 Cemented carbide body with increased wear resistance E. Torbjorn Hartzell, Udo Fischer 1995-05-09
5401461 Cemented carbide body used preferably for abrasive rock drilling and mineral cutting E. Torbjorn Hartzell, Udo Fischer 1995-03-28
5375672 Mine roof drill bit and cutting insert therefor Kent Peay 1994-12-27
5333520 Method of making a cemented carbide body for tools and wear parts Udo Fischer, Bengt Asberg, Stig Lagerberg 1994-08-02
5286549 Cemented carbide body used preferably for abrasive rock drilling and mineral cutting E. Torbjorn Hartzell, Udo Fischer 1994-02-15
5279901 Cemented carbide body with extra tough behavior Udo Fischer, E. Torbjorn Hartzell 1994-01-18
5074623 Tool for cutting solid material Jan-Gunnar Hedlund, Bengt Asberg 1991-12-24
4820482 Cemented carbide body with a binder phase gradient and method of making the same Udo Fischer, Erik T. Hartzell 1989-04-11
4743515 Cemented carbide body used preferably for rock drilling and mineral cutting Udo Fischer, Erik T. Hartzell 1988-05-10