René Lorin

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René Lorin (1877 - 1933), a graduate of the Ecole Centrale Paris, invented the ramjet, which he patented in 1908; he patented a subsonic ramjet design, and had not considered supersonic applications.

Lorin first published the principle in the technical review Aérophile in 1913, but unfortunately could not finalize his ideas, and could not build his invention since there was no way to achieve the velocities required for proper functioning of a ramjet.

When René Leduc applied for a patent for his ramjet in 1933, he discovered Lorin's publications and tried to contact him, only to learn that he had recently died. Leduc thereafter paid homage to Lorin's work.