HA

Hans Amann

PA Preussag Aktiengesellschaft: 3 patents #1 of 23Top 5%
Overall (All Time): #1,675,280 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4652055 Device for collecting manganese nodules on the ocean floor Axel Bath 1987-03-24
4398361 Recovery of sediments from the bottom of the sea by suspended suction pipe Jurgen Burkhardt 1983-08-16
4386473 Recovery of sediments from the bottom of the sea Jurgen Burkhardt, Klaus Luck, Fritz O. Poeppel 1983-06-07