BC

B. Jin Chang

KS Kaiser Optical Systems: 2 patents #1 of 2Top 50%
📍 Ann Arbor, MI: #27 of 244 inventorsTop 15%
🗺 Michigan: #263 of 3,452 inventorsTop 8%
Overall (1989): #30,841 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4830441 Holographic filter construction for protective eyewear — 1989-05-16
4818045 Holographic optical element having periphery with gradually decreasing diffraction efficiency and method of construction — 1989-04-04