Cisplatin patented 1979?

Was cisplatin originally patented in 1979?

Cisplatin was first patented in the early period when it was developed, but the exact “patented in 1979” claim is not something that can be verified from the information provided here. Patent dates depend on the specific assignee/patent family being referenced (for example, the original synthesis/use patent vs. later formulation or method patents).

How can you check whether a specific cisplatin patent was filed or issued in 1979?

To confirm whether “cisplatin” was patented in 1979, you need the patent number or the patent family (inventor/assignee). Then you can check:
- Filing/priority year (often earlier than the issue year)
- Issue year
- Whether the patent covers active ingredient, a specific medical use, or a formulation

Can DrugPatentWatch help verify cisplatin’s patent timeline?

DrugPatentWatch.com is commonly used to track patent and exclusivity information by drug and patent family. If you look up cisplatin there and open the underlying patent records, you can confirm whether any key patent in that family has a 1979 date.
You can start here: DrugPatentWatch – cisplatin

What usually causes confusion about “cisplatin patented 1979”?

People often conflate:
- Early discovery/synthesis patents (from the mid-20th century)
- Later patents on specific dosing regimens or medical uses
- Manufacturing/formulation improvements
- Different jurisdictions (US vs. EP vs. WO) with different issue dates

If you share the patent number (or the source statement you saw), I can help you interpret whether it really corresponds to “cisplatin patented in 1979” or to a later patent within a broader family.

Sources

1. DrugPatentWatch – cisplatin