Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Darrell Huffine — 2 Patents

PRPrecision: 2 patents #6 of 28Top 25%
Knoxville, IA: #16 of 43 inventorsTop 40%
Iowa: #6,154 of 15,303 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Darrell Huffine has been granted 2 US patents while listed as an inventor at Precision. The first was granted in 1999 and the most recent in June 2012. Darrell Huffine ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Darrell Huffine in Knoxville, IA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8196738 Ceramic pulley lagging Tim Wolf, Matt Roozeboom 2012-06-12
5942890 Rotating shaft monitoring device with a universal attaching mechanism Allen V. Reicks, Steven Smith 1999-08-24