OH

Otto Hallmann

HA Huels Aktiengesellschaft: 1 patents #269 of 532Top 55%
Overall (All Time): #3,764,603 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5391750 Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpiperidine Gerhard Thelen, Guthard Mock 1995-02-21