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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Fei — 9 Patents

IBM: 7 patents #14,688 of 70,183Top 25%
Genentech: 1 patents #1,597 of 2,392Top 70%
Belmont, CA: #365 of 1,494 inventorsTop 25%
California: #67,547 of 386,348 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
David Fei has been granted 9 US patents while listed as an inventor at IBM. The first was granted in 2005 and the most recent in April 2024. David Fei ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list David Fei in Belmont, CA, US.

Patents per Year

Patents granted per year, 2005 to 2024Bar chart with a peak of 2 patents in 2020.peak 22005: 1 patents20052009: 1 patents20092020: 2 patents20202021: 1 patents20212022: 2 patents20222023: 1 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11947808 Expanding storage capacity for implementing logical corruption protection Nedlaya Y. Francisco, Theresa M. Brown, Nicolas M. Clayton, Terry O'Connor 2024-04-02 $9,951,000
11604590 Metadata track entry sorting in a data storage system Theresa M. Brown, Gregory E. McBride 2023-03-14 $10,014,000
11275514 Expanding storage capacity for implementing logical corruption protection Nedlaya Y. Francisco, Theresa M. Brown, Nicolas M. Clayton, Terry O'Connor 2022-03-15 $4,817,000
11221955 Metadata track selection switching in a data storage system Theresa M. Brown, Gail A. Spear 2022-01-11 $4,843,000
11182081 Performing a recovery copy command to restore a safeguarded copy backup to a production volume Theresa M. Brown, Nedlaya Y. Francisco, Nicolas M. Clayton, Mark L. Lipets, Carol S. Mellgren +2 more 2021-11-23 $2,653,000
10754730 Copying point-in-time data in a storage to a point-in-time copy data location in advance of destaging data to the storage Theresa M. Brown, Kevin Lin, Nedlaya Y. Francisco 2020-08-25 $2,454,000
10719244 Multi-mode data replication for data loss risk reduction Matthew D. Carson, Joshua J. Crawford, Larry Juarez, Jay T. Kirch, Sean P. Riley +3 more 2020-07-21 $5,684,000
7541160 ELISA for VEGF Kristen Tomita 2009-06-02
6855508 ELISA for VEGF Kristen Tomita 2005-02-15 $412,572,000