Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RH

Robert den Hoed — 7 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Sioux Center, IA: #5 of 32 inventorsTop 20%
Iowa: #2,264 of 15,303 inventorsTop 15%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Robert den Hoed has been granted 7 US patents while listed as an inventor at Unknown. The first was granted in 2013 and the most recent in July 2021. Robert den Hoed ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert den Hoed in Sioux Center, IA, US.

Patents per Year

Patents granted per year, 2013 to 2021Bar chart with a peak of 2 patents in 2013.peak 22013: 2 patents20132015: 1 patents20152016: 1 patents20162019: 1 patents20192020: 1 patents20202021: 1 patents2021

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11060122 Method of producing jellyfish collagen extract 2021-07-13
10752671 Method of making collagen powder from marine cartilage and skin 2020-08-25
10301374 Method of producing collagen from hydrolyzed egg membrane 2019-05-28
9427454 Method of making liquid olive leaf extract 2016-08-30
9149512 Collagen mixture and method of making the same 2015-10-06
8470975 Collagen mixture and method of making the same Dana Summers 2013-06-25
8344106 Collagen mixture and method of making the same Dana Summers 2013-01-01