Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351960 | Production of an isomeric mixture of secondary phosphines | Hartfrid Vollmer, Gero Heymer | 1982-09-28 |
| 4324919 | Production of tertiary phosphines | Hartfrid Vollmer, Ernst Reutel | 1982-04-13 |