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USPTO Patent Rankings Data through Dec 31, 2025
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Dwight E. Leavens — 2 Patents

SYSylvachem: 2 patents #2 of 12Top 20%
Panama City, FL: #105 of 378 inventorsTop 30%
Florida: #22,549 of 67,251 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dwight E. Leavens has been granted 2 US patents while listed as an inventor at Sylvachem. The first was granted in 1980 and the most recent in November 1984. Dwight E. Leavens ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dwight E. Leavens in Panama City, FL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4483791 Recovery of fatty acids from tall oil heads C. Frank Phillips, Jr. 1984-11-20 $13,821,000
4185026 Process for cleansing spent clay from the refining of glyceride esters Gary W. Smith, Louis Sims 1980-01-22 $7,844,000