UW

Udo Weigand

OR Optische Werke G. Rodenstock: 2 patents #1 of 3Top 35%
📍 Birkenfeld, DE: #3 of 18 inventorsTop 20%
Overall (2002): #36,837 of 266,432Top 15%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6373615 Neutral-colored gray photochromic plastic object Claudia Mann, Manfred Melzig 2002-04-16
6342459 Photochromic naphthopyrans Manfred Melzig, Claudia Mann 2002-01-29