AC

Allen L. Cohen

🗺 Virginia: #10 of 1,067 inventorsTop 1%
Overall (1989): #5,716 of 140,708Top 5%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4889421 Contact lens with cosmetic pattern — 1989-12-26
4881804 Multifocal phase plate with a pure refractive portion — 1989-11-21
4881805 Progressive intensity phase bifocal — 1989-11-21
4876121 Cosmetic artificial nails — 1989-10-24