Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RA

Roger A. Addy — 22 Patents

STSeagate Technology: 22 patents #247 of 4,722Top 6%
Gilroy, CA: #55 of 527 inventorsTop 15%
California: #25,951 of 386,348 inventorsTop 7%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
Roger A. Addy has been granted 22 US patents while listed as an inventor at Seagate Technology. The first was granted in 1999 and the most recent in October 2011. Roger A. Addy ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Roger A. Addy in Gilroy, CA, US.

Patents per Year

Patents granted per year, 1999 to 2011Bar chart with a peak of 5 patents in 2000.peak 51999: 2 patents19992000: 5 patents20002001: 3 patents20012003: 3 patents20032004: 1 patents20042007: 1 patents20072008: 1 patents20082009: 3 patents20092010: 2 patents20102011: 1 patents2011

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
RE42854 Single piece hub with integral upper and lower female cones Michael D. Kennedy, Alan Lyndon Grantz, Norbert Parsoneault, Wesley R. Clark, Matt L. Shumway +1 more 2011-10-18
7823290 Method of forming a hub for use in a disk drive motor Michael D. Kennedy, Alan Lyndon Grantz, Norbert Steven Parsoneault, Wesley R. Clark, Matt L. Shumway +1 more 2010-11-02 $4,037,000
7788961 System and method for ballizing and measuring a workpiece bore hole Lev Mikhailovich Dvoskin, Gunter Heine 2010-09-07 $5,885,000
7625468 Electrode for electrochemical machining Alexander Parkhomovsky, Lev Mikhailovich Dvoskin, Robert M. Pelstring 2009-12-01 $32,920,000
7568370 System and method for ballizing and measuring a workpiece bore hole Lev Mikhailovich Dvoskin, Gunter Heine 2009-08-04 $17,835,000
7547143 Fluid dynamic bearing capsule with recirculation paths 2009-06-16 $27,907,000
7390125 Single piece hub with integral upper and lower female cones Michael D. Kennedy, Alan Lyndon Grantz, Norbert Steven Parsoneault, Wesley R. Clark, Matt L. Shumway +1 more 2008-06-24 $19,407,000
7210209 System and method for ballizing and measuring a workpiece bore hole Gunter Heine, Lev Mikhailovich Dvoskin 2007-05-01 $17,021,000
6755570 Single piece hub with integral upper and lower female cones and method for making the same Michael D. Kennedy, Alan Lyndon Grantz, Norbert Parsoneault, Wesley R. Clark, Matt L. Shumway +1 more 2004-06-29 $5,468,000
6638414 Electrode design for electrochemical machining of grooves Donald J. MacLeod, Klaus Kloeppel, Wesley R. Clark 2003-10-28 $26,330,000
6578454 Machining process for hydrodynamic bearing 2003-06-17 $18,354,000
6530143 Apparatus for setting gaps in hydrodynamic bearing David Jennings, Wesley R. Clark 2003-03-11 $12,750,000
6280088 Crowned conical bearing Hans Leuthold, Matt L. Shumway, Alan Lyndon Grantz, Norbert Parsoneault, Samnathan Murthy +1 more 2001-08-28
6267869 Electrode design for electrochemical machining of grooves Donald J. MacLeod, Klaus Kloeppel, Wesley R. Clark 2001-07-31
6195895 Hydrodynamic bearing arrangement having a structure permitting the removal of entrapped air David Wuester, Sr. 2001-03-06
6148501 Fabrication means for in-hub spindle with separate fluid dynamic bearings Alan Lyndon Grantz, Marten Byl, Matt L. Shumway, Norbert Steven Parsoneault, Etoli Wolff +1 more 2000-11-21 $31,009,000
6149161 Grooved pumping seal Alan Lyndon Grantz, Robert A. Nottingham 2000-11-21 $31,009,000
6144523 Simplified conical bearing with independent flow paths Samnathan Murthy, Alan Lyndon Grantz, Steve Parsoneault, Peter Riegler, Mohamed Mizanur Rahman 2000-11-07 $82,623,000
6119348 Air gaging for setting gaps in hydrodynamic bearings David Jennings, Wesley R. Clark 2000-09-19 $17,314,000
6019516 Crowned conical bearing Hans Leuthold, Matt L. Shumway, Alan Lyndon Grantz, Norbert Steven Parsoneault, Samnathan Murthy +1 more 2000-02-01 $13,695,000
5978175 Hydrodynamic bearing arrangement having a structure permitting the removal of entrapped air David Wuester, Sr. 1999-11-02 $17,268,000
5946958 Device for manufacturing a groove bearing Wesley R. Clark, Samnathan Murthy, David Jennings 1999-09-07 $27,636,000