AC

Allen L. Cohen

🗺 Virginia: #47 of 685 inventorsTop 7%
Overall (1982): #16,494 of 81,411Top 25%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4340283 Phase shift multifocal zone plate 1982-07-20
4338005 Multifocal phase place 1982-07-06