Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JK

John Kempke — 2 Patents

ASAlpha-Tec Systems: 2 patents #4 of 6Top 70%
Vancouver, WA: #764 of 1,812 inventorsTop 45%
Washington: #35,700 of 76,902 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John Kempke has been granted 2 US patents while listed as an inventor at Alpha-Tec Systems. All of these patents were granted in 2019. John Kempke ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Kempke in Vancouver, WA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10451528 Collection, filtration and concentration apparatus for biological samples Richard O. Williams, Mark Williams 2019-10-22
10299767 Sample collection apparatus Richard O. Williams, Mark Williams 2019-05-28