Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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A. David Hofferbert — 2 Patents

Abbott: 2 patents #2,518 of 5,509Top 50%
Grafton, WI: #105 of 238 inventorsTop 45%
Wisconsin: #17,225 of 40,088 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
A. David Hofferbert has been granted 2 US patents while listed as an inventor at Abbott. The first was granted in 1997 and the most recent in May 1998. A. David Hofferbert ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list A. David Hofferbert in Grafton, WI, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5753186 Reaction tube with a penetrable membrane to minimize contamination Kathleen A. Hanley, Helen Lee, Curtis J. Pepe, Timothy J. Perko, Thomas Zurek 1998-05-19 $84,879,000
5604101 Method of minimizing contamination in amplification reactions using a reaction tube with a penetrable membrane Kathleen A. Hanley, Helen Lee, Curtis J. Pepe, Thomas Zurek 1997-02-18 $43,324,000