HP

Hermann Piana

DA Degussa Ag: 4 patents #323 of 2,007Top 20%
📍 Hanau, NY: #5 of 5 inventorsTop 100%
Overall (All Time): #1,285,544 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5782935 Process for coloring polytrimethylene terephthalate fibres and use of the fibres colored by this process Peter Hirt, Gilbert Kühl, Hansjorg Traub, Heinz Herlinger 1998-07-21
5739204 Heat-curable coating material 1998-04-14
5373068 Use of isophoronediamine isomer mixtures in polyaddition resins Klaus Huthmacher 1994-12-13
5183944 Method of doping aqueous solutions with acrolein in biocidally effective concentration Peter Werle, Martin Trageser 1993-02-02