Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644039 | Mixtures of blue disperse azo dyestuffs | Rainer Hamprecht | 1997-07-01 |
| 5160348 | Mixtures of blue azo disperse dyestuffs | Manfred Hoppe, Dieter Wiegner, Klaus-Peter Sagner, Horst Brandt | 1992-11-03 |
| 4613097 | Rigid wing flying craft | — | 1986-09-23 |
| 4598887 | Rotary wing flying craft | — | 1986-07-08 |
| 4387867 | Flying craft | — | 1983-06-14 |
| 4386748 | Aircraft with counterrotating members | — | 1983-06-07 |
| 4273302 | Aircraft with counterrotating members | — | 1981-06-16 |