Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
FL

Francis E. Luddy — 4 Patents

Google: 3 patents #8,096 of 22,993Top 40%
USUSDA: 1 patents #1,162 of 2,828Top 45%
Hatboro, PA: #39 of 173 inventorsTop 25%
Pennsylvania: #19,360 of 74,527 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Francis E. Luddy has been granted 4 US patents while listed as an inventor at Google. The first was granted in 1980 and the most recent in November 1989. Francis E. Luddy ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Francis E. Luddy in Hatboro, PA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4880658 Obtaining a fat fraction with azeotropic solvents Sergio Longhi 1989-11-14
4839191 Fat fractions and mixtures thereof Sergio Longhi 1989-06-13
4601857 Process for fat fractionation with azeotropic solvents Sergio Longhi 1986-07-22
4205006 Physiochemically designed fat compositions from tallow and process for making James W. Hampson, Samuel F. Herb, Herbert L. Rothbart 1980-05-27