EO

Elisabeth Ortwein

UN Unknown: 2 patents #12,644 of 83,584Top 20%
Overall (All Time): #1,624,610 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6293473 Railroad substructure Hermann Ortwein 2001-09-25
5165598 Resiliently mounted rail for rail vehicles 1992-11-24
4915298 Rail mount for railway-type rails 1990-04-10