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

Ralf HEDDEN — 1 Patent

Shell Oil Compny: 1 patents #2,223 of 4,423Top 55%
Calgary, CA: #2,801 of 5,407 inventorsTop 55%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Ralf HEDDEN has been granted 1 US patent while listed as an inventor at Shell Oil Compny. All of these patents were granted in 2017. Ralf HEDDEN ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Ralf HEDDEN in Calgary, AB, CA.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9784081 Oil recovery process Carolus Petrus Adrianus BLOM, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine 2017-10-10