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

Evert C. Klein — 3 Patents

ExxonMobil: 3 patents #3,063 of 10,161Top 35%
Dorst, NL: #4 of 8 inventorsTop 50%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Evert C. Klein has been granted 3 US patents while listed as an inventor at ExxonMobil. The first was granted in 2014 and the most recent in October 2015. Evert C. Klein ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Evert C. Klein in Dorst, NL.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9156018 Vaporisation in oxidation to phthalic anhydride Nicolaas A. De Munck, Aad Gerrit Oskam 2015-10-13 $414,940,000
8968671 Mixing in oxidation to phthalic anhydride Nicolaas A. De Munck, Aad Gerrit Oskam, Johnny Jozef Houben 2015-03-03 $121,004,000
8703974 Vaporization in oxidation to phthalic anhydride Nicolaas A. De Munck, Aad Gerrit Oskam 2014-04-22 $80,154,000