Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Christopher M. Carpenter

EGEsco Group: 44 patents #1 of 186Top 1%
QUQuantum: 3 patents #139 of 703Top 20%
MAMaxtor: 2 patents #206 of 656Top 35%
HKHitachi-Lg Data Storage Korea: 1 patents #23 of 71Top 35%
Tualatin, OR: #7 of 324 inventorsTop 3%
Oregon: #686 of 28,073 inventorsTop 3%
Overall (All Time): #54,251 of 4,157,543Top 2%
50 Patents All Time

Issued Patents All Time

Showing 26–50 of 50 patents

Patent #TitleCo-InventorsDate
9222353 Tip for an earth working roll Ray J. Morris, Robert S. Fleck, Mark Cheyne 2015-12-29
D731565 Stepped hammer for shredding machines Michael R. Weeks, David M. Graf 2015-06-09
D731564 Hammer for shredding machines David M. Graf, Michael R. Weeks, John P. Hoice, Daniel R. Morrow, Terry L. Briscoe 2015-06-09
8839535 Wear assembly Donald M. Conklin, Ray J. Morris, James E. Bearden, Severn D. Durand, Dziugas Radzius 2014-09-23
8756907 Chain and coupling links Terry L. Briscoe, Michael Rose, Sean T. Hirtle, Charles G. Ollinger, IV 2014-06-24
8689472 Wear assembly Donald M. Conklin, James E. Bearden, Severn D. Durand, Dziugas Radzius 2014-04-08
8356432 Wear assembly 2013-01-22
8341653 Optical disc storage system Price B. Terzis, Artem Mishin, Brian Hale Nelson, Craig Barker 2012-12-25
8122621 Wear assembly Donald M. Conklin, Ray J. Morris, James E. Bearden, Severn D. Durand 2012-02-28
7882649 Wear assembly Donald M. Conklin, Ray J. Morris, James E. Bearden, Severn D. Durand 2011-02-08
7874086 Lock assembly for securing a wear member to earth-working equipment Terry L. Briscoe, Aaron B. Lian 2011-01-25
7739814 Point and adapter assembly Robert S. Fleck, Terry L. Briscoe, Daniel R. Danks, Venkat R. Gaurav, Larren F. Jones 2010-06-22
7730651 Wear assembly 2010-06-08
7578081 Wear assembly James E. Bearden, Severn D. Durand, Michael Severson 2009-08-25
7367144 Wear member for excavating equipment Larren F. Jones, David M. Graf 2008-05-06
7144183 Lock with internal retainer Aaron B. Lian, Emory D. Hungerford, Lorraine R. Hungerford, legal representative, Ray J. Morris 2006-12-05
7100315 Point and adapter assembly Robert S. Fleck, Terry L. Briscoe, Daniel R. Danks, Venkat R. Gaurav, Larren F. Jones 2006-09-05
7017044 Extremely secure method for keying stored contents to a specific storage device Todd P. Carpenter, John Masles, Chris Dudte 2006-03-21
6993861 Coupling for excavating wear part David M. Graf 2006-02-07
6735890 Wear assembly Robert S. Fleck, Terry L. Briscoe, Daniel R. Danks, Venkat R. Gaurav, Larren F. Jones 2004-05-18
6275358 Conductor trace array having passive stub conductors Arun Balakrishnan 2001-08-14
6222375 Synchronous calibration test circuit for use in recording systems James Fitzpatrick 2001-04-24
5796552 Suspension with biaxially shielded conductor trace array William Akin, Arun Balakrishnan, Stephen P. Williams 1998-08-18
5777760 Position feedback system for volume holographic storage media Nathan Hays, James A. Henson, William Akin, Richard M. Ehrlich, Lance D. Beazley 1998-07-07
5382110 Quick coupling device Richard D. Perotto, Terry L. Briscoe, Dean F. Richards 1995-01-17