Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Spain — 2 Patents

Calle de la Era, AU: #52 of 215 inventorsTop 25%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David Spain has been granted 2 US patents. The first was granted in 2011 and the most recent in October 2025. David Spain ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Spain in Calle de la Era, AU.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12447723 Linerless, conformable composite tank structure for aircraft water and waste Edita Salcepuedes, Mario Nakhla, Sankar Mohan, Mihir Lal 2025-10-21
7967883 Extractor for vacuum cleaning system 2011-06-28