CJ

Cornelis Roelof Jonker

ES Element Six Abrasives S.A.: 10 patents #1 of 56Top 2%
EL Element Six Limited: 10 patents #11 of 181Top 7%
BH Baker Hughes Holdings: 3 patents #995 of 3,522Top 30%
📍 Springs, ZA: #2 of 48 inventorsTop 5%
Overall (All Time): #320,708 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
10337255 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods Anthony A. DiGiovanni, Yavuz Kadioglu, Danny E. Scott, Matthew J. Meiners, Rudolf Carl Pessier +5 more 2019-07-02
10071354 Polycrystalline superhard material and method for making same Roger William Nigel Nilen, Maweja Kasonde, Stig Ake Andersin 2018-09-11
10071355 Cutting inserts and method for making same Bo Christer Olofsson, Roger William Nigel Nilen, Stig Ake Andersin, John James Barry 2018-09-11
9975185 Twist drill tips, precursor constructions for use in making same, and methods for making and using same Maweja Kasonde, Robert Fries, John James Barry 2018-05-22
9844814 Superhard tool tip, method for making same and tool comprising same Robert Fries, Maweja Kasonde, John James Barry 2017-12-19
9566688 Insert for an attack tool, method for making same and tools incorporating same Roger William Nigel Nilen, Anthony A. DiGiovanni 2017-02-14
9562431 Tip for a pick tool, method of making same and pick tool comprising same Robert Fries 2017-02-07
9334730 Tips for pick tools and pick tools comprising same Matthew Alan Sanan 2016-05-10
9334731 Pick tool and assembly comprising same Robert Fries, Frank Friedrich Lachmann, Bernd Heinrich Ries 2016-05-10
9249662 Tip for degradation tool and tool comprising same David Christian Bowes, Thembinkosi Shabalala, Nedret Can 2016-02-02
9243452 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods Anthony A. DiGiovanni, Yavuz Kadioglu, Danny E. Scott, Matthew J. Meiners, Rudolf Carl Pessier +5 more 2016-01-26
9234423 Super-hard tip for a pick tool and pick tool comprising same PETER ROBERT BUSH, Bernd Heinrich Ries, Robert Fries 2016-01-12
9097111 Pick tool David Christian Bowes, Thembinkosi Shabalala, Nedret Can 2015-08-04
9080294 Pick assembly, pick holder for same, pick tool for same and strike element for same Bernd Heinrich Ries, Frank Friedrich Lachmann 2015-07-14
8231698 Polycrystalline diamond abrasive compacts Barbara Mariëlle De Leeuw-Morrison, Roger William Nigel Nilen 2012-07-31