HS

Helmut Schweiger

WA Waagner-Biro Aktiengesellschaft: 1 patents #8 of 30Top 30%
Overall (All Time): #3,929,069 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4834837 Method for delignification of cellulose with oxygen Heinz Loquenz, Siegfried Meissl, Norbert Meindl, Karl Schwarzl, Anton Hruschka 1989-05-30