WR

Willy Ritze

JG Jenaer Glaswerk, Schott & Gen.: 1 patents #11 of 40Top 30%
SG Schott Glaswerke: 1 patents #119 of 256Top 50%
Overall (All Time): #2,350,001 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4615989 Optical quality colored glass — 1986-10-07
4297142 Optical colored and filter glass — 1981-10-27