JM

John P. Mann

DI Dresser Industries: 1 patents #301 of 787Top 40%
📍 Worthington, OH: #207 of 449 inventorsTop 50%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,280,633 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5542636 Clips for supporting miniature Christmas lights at any of a plurality of locations Barbara A. Mann 1996-08-06
4648660 Method and apparatus for mining machine cutter head Victor M. Levenstein, Charles H. Fox 1987-03-10