JK

J. Cornelis Kerkhoff

📍 Rosedale, CA: #4 of 7 inventorsTop 60%
Overall (All Time): #2,048,971 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8734051 Apparatus for aerating and draining Dirk M. Kerkhoff 2014-05-27
8708603 Apparatus for aerating and draining Dirk M. Kerkhoff 2014-04-29