Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Key — 4 Patents

Ronda, NC: #2 of 2 inventorsTop 100%
North Carolina: #12,022 of 45,564 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David Key has been granted 4 US patents. The first was granted in 2001 and the most recent in October 2017. David Key ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Key in Ronda, NC, US.

Patents per Year

Patents granted per year, 2001 to 2017Bar chart with a peak of 1 patents in 2001.peak 12001: 1 patents20012003: 1 patents20032013: 1 patents20132017: 1 patents2017

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9799244 Vehicle display device Dan Matheus 2017-10-24
8418386 Mobile vehicle display device Dan Matheus, Marc A. Meadows, Jayton T. Cagle 2013-04-16
D484050 Paint can lid 2003-12-23
D445684 Paint can lid 2001-07-31