Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Jacques Machefer — 1 Patent

Paris, FR: #6,757 of 13,709 inventorsTop 50%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Jacques Machefer has been granted 1 US patent. All of these patents were granted in 1980. Jacques Machefer ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Jacques Machefer in Paris, FR.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4239507 Method of separation of a gas from a gas mixture Robert Benoit, Jacques Mauvisseau, Pierre Plurien 1980-12-16