EE

Erhard Effer

OR Optische Werke G. Rodenstock: 3 patents #14 of 71Top 20%
📍 Pöcking, DE: #6 of 33 inventorsTop 20%
Overall (All Time): #1,619,881 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6171525 Process for the production of a photochromic object Manfred Melzig, Herbert Zinner, Herbert Schuster 2001-01-09
5498686 Optically transparent photochromic plastic material Manfred Melzig, Herbert Schuster, Guiseppe Martinuzzi 1996-03-12
4852974 Anti-reflection film for an optical element consisting of an organic material Manfred Melzig 1989-08-01