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John William Spaven

UN Unknown: 1 patents #329 of 3,506Top 10%
📍 Delft, NL: #23 of 128 inventorsTop 20%
Overall (2020): #406,657 of 565,922Top 75%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10849458 Portable barbecue Jeroen Klaasjan Verbrugge, Willemijn Lianne Verduijn 2020-12-01