Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David L. Buchanon — 1 Patent

CECummins Engine: 1 patents #304 of 765Top 40%
Westport, IN: #7 of 12 inventorsTop 60%
Indiana: #19,404 of 33,936 inventorsTop 60%
Overall (All Time): #3,777,484 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5441027 Individual timing and injection fuel metering system Lester L. Peters, Julius P. Perr, Yul J. Tarr 1995-08-15