Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Callam Clark — 1 Patent

CBCampina B.V.: 1 patents #1 of 18Top 6%
Vught, NL: #60 of 116 inventorsTop 55%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David Callam Clark has been granted 1 US patent while listed as an inventor at Campina B.V.. All of these patents were granted in 2007. David Callam Clark ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David Callam Clark in Vught, NL.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7276261 Method for preparing a roller dried protein preparation Tillmann Gerhard Schmelter, Johannes Henricus Van Dijk 2007-10-02