Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Fernand Fourcade — 1 Patent

Schlumberger Technology: 1 patents #3,946 of 7,293Top 55%
Estagel, FR: #1 of 1 inventorsTop 100%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Fernand Fourcade has been granted 1 US patent while listed as an inventor at Schlumberger Technology. All of these patents were granted in 1990. Fernand Fourcade ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Fernand Fourcade in Estagel, FR.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4916312 Device for placing a radioactive source in a formation through which a borehole passes Ian C. Ellis, Patrick Vandenabeele 1990-04-10 $6,964,000