JK

John Knight

WS W-K-M Wellhead Systems: 1 patents #6 of 14Top 45%
📍 Osage, IA: #3 of 19 inventorsTop 20%
🗺 Iowa: #3,757 of 15,303 inventorsTop 25%
Overall (All Time): #1,251,702 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7430153 Downhole tool and method Simon Fraser, William Brown-Kerr 2008-09-30
7387167 Insulating device and assembly Simon Fraser, William Brown-Kerr 2008-06-17
4460039 Wellhead valve removal and installation tool 1984-07-17
4316695 Garbage compaction truck 1982-02-23