Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stephen Walker — 5 Patents

IBM: 3 patents #26,335 of 70,183Top 40%
LLLenovo (Singapore) Ptd. Limited: 1 patents #1 of 29Top 4%
LPLenovo (Singapore) Pte.: 1 patents #1,155 of 1,301Top 90%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Stephen Walker has been granted 5 US patents while listed as an inventor at IBM. The first was granted in 2005 and the most recent in June 2009. Stephen Walker ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Stephen Walker in Lockerley, GB.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7543181 Recovery from failures within data processing systems Robert Buxton, David Fisher, Jose Emir Garza, Stephen J. Hobson, Paul Hopewell +3 more 2009-06-02
7484119 Method, apparatus, computer program and computer program product for adjusting the frequency at which data is backed up David Fisher, Stephen J. Hobson, Paul Hopewell, Paul Kettley, Robert Millar +1 more 2009-01-27 $4,993,000
6993537 Data recovery system Robert Buxton, Stephen J. Hobson, Paul Hopewell, Paul Kettley, Robert Millar +1 more 2006-01-31
6948093 Data processing arrangement and method Dermot Flaherty, David Fisher, Stephen J. Hobson, Paul Hopewell, Paul Kettley +2 more 2005-09-20 $5,282,000
6848037 Data processing arrangement and method Dermot Flaherty, David Fisher, Stephen J. Hobson, Paul Hopewell, Paul Kettley +2 more 2005-01-25 $10,247,000