HANS FISCHER DR has a total of 12 patent applications. Its first patent ever was published in 1926. It filed its patents most often in Germany. Its main competitors in its focus markets organic fine chemistry are JIANGSU AVENTIS PHARMACEUTICAL CO LTD, QINGDAO MAIRUITE PHARMACEUTICAL TECHNOLOGY CO LTD and CHENGDU CLIMB PHARMACEUTICAL TECHNOLOGY CO LTD.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Heterocyclic compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Treibs Dr Alfred | 1 |
| #2 | Walach Dipl-Ing Dr Bruno | 1 |
| #3 | Halbig Dipl-Ing Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE515992C | Process for the preparation of porphyrins | |
| DE509939C | Process for the preparation of porphyrins |