This chart shows the pharmaceutical companies with the most patents in Bulgaria.
Patents must be filed in each country (or, in some cases regional patent office) where patent protection is desired.
For a global perspective, see the Drug companies with the greatest global patent coverage.
The companies with the greatest patent coverage in Bulgaria are:
- Pf Prism Cv
- Ucb Inc
- Boehringer Ingelheim
- Allergan
- Covis
- Duchesnay
- Gilead Sciences Inc
- Helsinn
- Janssen
- Janssen Prods
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