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

John E. Lumby — 3 Patents

IBM: 3 patents #26,335 of 70,183Top 40%
Toronto, CA: #2,646 of 9,482 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John E. Lumby has been granted 3 US patents while listed as an inventor at IBM. The first was granted in 2001 and the most recent in August 2004. John E. Lumby ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John E. Lumby in Toronto, ON, CA.

Patents per Year

Patents granted per year, 2001 to 2004Bar chart with a peak of 1 patents in 2001.peak 12001: 1 patents20012003: 1 patents20032004: 1 patents2004

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6778976 Selectivity estimation for processing SQL queries containing having clauses Peter J. Haas, Calisto P. Zuzarte 2004-08-17 $5,840,000
6615222 System and process for evaluating the performance of a database system John Frederick Hornibrook, Walid Rjaibi, Calisto P. Zuzarte 2003-09-02 $11,479,000
6230206 System for internode deadlock avoidance in parallel database system using as overflow buffer a temporary table storage allocated to the parallel database application program being executed Douglas Doole, Paul C. Huffman 2001-05-08 $26,391,000