DH

David B. Hughes

DE Digital Equipment: 2 patents #602 of 2,100Top 30%
📍 Hudson, MA: #170 of 327 inventorsTop 55%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,342,870 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4667307 Circuit for selecting and locking in operation function circuitry Thomas C. Porcher, Morgan E. Robinson 1987-05-19
4625203 Arrangement for providing data signals for a data display system Robert S. DiNitto, Thomas C. Porcher, John W. Eng, Charles S. Namias 1986-11-25