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USPTO Patent Rankings Data through Dec 31, 2025
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Harm Van Dalfsen — 3 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Leeuwarden, NL: #18 of 75 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Harm Van Dalfsen has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 2003 and the most recent in April 2022. Harm Van Dalfsen ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Harm Van Dalfsen in Leeuwarden, NL.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11297847 Liquid treatment system for concentrating raw milk, and method therefor 2022-04-12
10076726 Method for producing a membrane and such membrane Hans Hendrik Wolters, Sybrandus Jacob Metz 2018-09-18
6576136 Method and apparatus for removing floating substances and salts from a liquid by means of a membrane filtration Petrus Jacob De Moel, Walterus Van der Meer 2003-06-10