| Measurement of downhole component stress and surface conditions S Kumar, H John, H Grimmer, T Kruspe, A Peter, M Koppe US Patent 9,057,247, 2015 | 153 | 2015 |
| Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 1: Effect of machine hammer peening T Chen, H John, J Xu, Q Lu, J Hawk, X Liu Corrosion Science 77, 230-245, 2013 | 124 | 2013 |
| Drillpipe structures to accommodate downhole testing DS Kopecki, MM Wisler, H John US Patent 6,710,600, 2004 | 81 | 2004 |
| Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 2: Effect of aging treatment T Chen, H John, J Xu, Q Lu, J Hawk, X Liu Corrosion Science 78, 151-161, 2014 | 61 | 2014 |
| Diamond bearing with cooling/lubrication channels H John, A Krafczyk US Patent App. 10/397,482, 2004 | 52 | 2004 |
| PDC sensing element fabrication process and tool S Kumar, AA DiGiovanni, D Scott, H John, O Monteiro US Patent 8,695,729, 2014 | 40 | 2014 |
| At-bit evaluation of formation parameters and drilling parameters S Kumar, H John, D Scott, A DiGiovanni US Patent 8,757,291, 2014 | 31 | 2014 |
| PDC sensing element fabrication process and tool S Kumar, AA DiGiovanni, DE Scott, H John, O Monteiro US Patent 10,662,769, 2020 | 30 | 2020 |
| Compositions, methods of coating wellbore tools with such compositions, and wellbore tools coated with such compositions H John, E Bartscherer, A Krafczyk US Patent App. 13/204,380, 2013 | 25 | 2013 |
| Oil-grade alloy 718 in oil field drilling application J Xu, H John, G Wiese, X Liu Superalloy 718 and Derivatives, 521-537, 2010 | 21 | 2010 |
| Diamond bearing with cooling/lubrication channels H John, A Krafczyk US Patent 7,255,480, 2007 | 20 | 2007 |
| Wellbore tools having superhydrophobic surfaces, components of such tools, and related methods J Hendrik, S Kumar US Patent 8,746,375, 2014 | 19 | 2014 |
| Effect of aging treatment on pitting corrosion behavior of oil-grade nickel base alloy 718 in 3.5 wt% NaCl solution T Chen, X Liu, H John, J Xu, J Hawk NACE CORROSION, NACE-2012-1263, 2012 | 19 | 2012 |
| Transport and analysis device for use in a borehole S Kumar, H John US Patent App. 13/083,839, 2011 | 17 | 2011 |
| System and method for controlling the integrity of a drilling system H John, JF Oppelt, J Xu US Patent 8,413,744, 2013 | 16 | 2013 |
| Diamond tape coating and methods of making and using same H John US Patent 7,217,180, 2007 | 16 | 2007 |
| Methods of coating wellbore tools and components having such coatings S Kumar, H John US Patent 9,121,237, 2015 | 13 | 2015 |
| PDC sensing element fabrication process and tool S Kumar, AA DiGiovanni, DE Scott, H John, O Monteiro US Patent 9,695,683, 2017 | 8 | 2017 |
| Downhole seal and method of lubricating a downhole tool H John US Patent App. 13/191,045, 2012 | 8 | 2012 |
| Effects of hammer peening and aging treatment on microstructure, mechanical properties and corrosion resistance of oil-grade alloy 718 T Chen, H John, J Xu, J Hawk, X Liu Superalloys 2012, 609-614, 2012 | 7 | 2012 |
