DK

David D. Ketchum

EA Electronics Corporation Of America: 2 patents #2 of 9Top 25%
📍 Ipswich, MA: #104 of 208 inventorsTop 50%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,370,816 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4280184 Burner flame detection Nathan K. Weiner, Peter J. Weyman 1981-07-21
4272725 Interface circuit for use with electronic control devices Nathan K. Weiner 1981-06-09