Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847426 | Process for the preparation of 2,4-dinitrophenyl ethers | Hartmut Heise, Manfred Hintzmann | 1989-07-11 |
DH
Dieter Heck
Overall (1989): #120,352 of 140,708Top 90%
1
Patents 1989