EM

Earl O. Martin

BL Bell Telephone Laboratories: 2 patents #297 of 1,445Top 25%
AT AT&T: 1 patents #10,626 of 18,772Top 60%
📍 Laureldale, PA: #23 of 57 inventorsTop 45%
🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%
Overall (All Time): #1,682,262 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4473719 Switchhook status detector Milton L. Embree, Dieter John Henry Knollman 1984-09-25
4419542 Battery feed circuit Milton L. Embree, Dieter John Henry Knollman 1983-12-06
4330744 Precision converter/isolation circuit Milton L. Embree 1982-05-18