DC

Donald E. Christofer

FS Federal Signal: 1 patents #293 of 717Top 45%
SC Stock Equipment Co.: 1 patents #5 of 12Top 45%
📍 Mentor, OH: #289 of 709 inventorsTop 45%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,346,835 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4572710 Method and apparatus for changing filters in nuclear power stations Arthur J. Stock, John C. Homer, Robert J. Torok, Thomas Whittington 1986-02-25
4257518 Feeder for particulate material Arthur J. Stock 1981-03-24