CM

Claudia Mann

OR Optische Werke G. Rodenstock: 2 patents #1 of 3Top 35%
Overall (2002): #70,072 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

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