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

Dirk Knol — 3 Patents

SBStamicarbon B.V.: 2 patents #111 of 427Top 30%
Beek, NL: #13 of 47 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Dirk Knol has been granted 3 US patents while listed as an inventor at Stamicarbon B.V.. The first was granted in 1982 and the most recent in December 2024. Dirk Knol ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Dirk Knol in Beek, NL.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12163613 Hose Cornelis Van Barneveld 2024-12-10
4554386 Process for the preparation of methyl tertiary butyl ether Christiaan Groeneveld, Johannes D. M. Verstegen, Jacobus Carnelis Jansen 1985-11-19
4339604 Method for the preparation of cyclohexanol and/or cyclohexanone Paul C. Van Geem, Theodorus F. M. de Graaf, Otto G. Plantema 1982-07-13 $1,279,000