Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353833 | Cationic dyes | Horst Bruder, Franz Feichtmayr, Klaus Grychtol, Udo Mayer | 1982-10-12 |
| 4323362 | Dyed paper | Klaus Grychtol | 1982-04-06 |
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Hans-Juergen Degen
Overall (1982): #13,519 of 81,411Top 20%
2
Patents 1982