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USPTO Patent Rankings Data through Dec 31, 2025
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Dwight E. Raff — 3 Patents

DCDixie Chemical: 2 patents #3 of 7Top 45%
NONoramco: 1 patents #13 of 52Top 25%
West Chester, PA: #491 of 1,305 inventorsTop 40%
Pennsylvania: #23,787 of 74,527 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Dwight E. Raff has been granted 3 US patents while listed as an inventor at Dixie Chemical. The first was granted in 1989 and the most recent in October 2001. Dwight E. Raff ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Dwight E. Raff in West Chester, PA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6300503 Hydantoin intermediates for the synthesis of omapatrilat and methods for producing and using the same Joseph C. Rongione, Robert Edison Brown 2001-10-09
6284901 Dinitrile intermediates for the synthesis of omapatrilat and methods for producing same Joseph C. Rongione, Robert Brown 2001-09-04
4870209 Process for purifying crude 4-aminophenol James Kao 1989-09-26 $16,985,000