John P. Greiner

KK Key Knife: 1 patents #12 of 19Top 65%

📍 Oregon City, OR: #126 of 258 inventorsTop 50%

🗺 Oregon: #17,068 of 28,073 inventorsTop 65%

Overall (All Time): #3,215,694 of 4,157,543Top 80%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
8225828	Modular conical chipper/canter head and method	—	2012-07-24