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Michael A. Berkelhammer

📍 Greensboro, NC: #553 of 1,557 inventorsTop 40%
🗺 North Carolina: #18,756 of 45,564 inventorsTop 45%
Overall (All Time): #2,190,895 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D489797 Valve Thomas Glenn Hall, Jr. 2004-05-11
D412454 Sight glass for sprinkler system lines 1999-08-03