Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Darrell E. Murphy — 1 Patent

BSBethlehem Steel: 1 patents #116 of 326Top 40%
Valparaiso, IN: #148 of 330 inventorsTop 45%
Indiana: #19,553 of 33,936 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Darrell E. Murphy has been granted 1 US patent while listed as an inventor at Bethlehem Steel. All of these patents were granted in 2002. Darrell E. Murphy ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Darrell E. Murphy in Valparaiso, IN, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6491761 Process for removing stains from steel sheet in a continuous pickling line John W. Wray, Michael Pilnock 2002-12-10