Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Keefe — 3 Patents

Harris: 1 patents #1,917 of 2,461Top 80%
Simi Valley, CA: #385 of 1,200 inventorsTop 35%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David Keefe has been granted 3 US patents while listed as an inventor at Harris. The first was granted in 1999 and the most recent in April 2006. David Keefe ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David Keefe in Simi Valley, CA, US.

Patents per Year

Patents granted per year, 1999 to 2006Bar chart with a peak of 1 patents in 1999.peak 11999: 1 patents19992002: 1 patents20022006: 1 patents2006

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7021866 Article of manufacture for anchoring poles, tubing, or rods in sand, or other surface sediments 2006-04-04
6357645 Release pull bar holster 2002-03-19
6005921 Telephone ringback test device and method Joseph E. Barron, Jeffrey W. Hearsey, Michael Kennedy, Roy Lujan Soto 1999-12-21 $21,086,000