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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David William Keith — 2 Patents in 2021

CECarbon Engineering: 2 patents #1 of 6Top 20%
Santa Clara, CA: #441 of 2,083 inventorsTop 25%
California: #13,721 of 66,859 inventorsTop 25%
Overall (2021): #169,077 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11014043 Capturing carbon dioxide Kenton Robert Heidel, Geoffrey James Holmes 2021-05-25
11014823 Recovering a caustic solution via calcium carbonate crystal aggregates Kenton Robert Heidel, Jane Anne Ritchie, Nicholas Vollendorf, Eric Fessler 2021-05-25