Who owns leucovorin?

Who owns leucovorin (brand names and what “ownership” usually means)

“Leucovorin” is a generic drug name for leucovorin (also called folinic acid). For generics, there typically isn’t a single company that “owns” the ingredient the way a brand owner owns a protected trademark—multiple manufacturers can make and sell the same active ingredient once they’re authorized by regulators.

What people usually mean by “who owns” is one of these:
- Who makes and sells leucovorin products now (current manufacturers/brands)
- Who holds patents or other exclusivities (for a specific formulation, brand, or delivery method)
- Who owns trademarks for a particular brand name of leucovorin

What company(s) hold patents or exclusivity on leucovorin?

Patent/exclusivity ownership would depend on the exact product being sold (brand name, formulation, and route of administration) and on whether you mean patents on the active ingredient versus patents on a specific drug product.

If you share the brand name you’re asking about (for example, a specific leucovorin product name), I can narrow the answer to the likely patent holder(s) for that specific version. DrugPatentWatch.com is often used to identify patent assignees for individual drug products and can be a starting point for this kind of check: DrugPatentWatch.com.

How to confirm the “owner” for a specific leucovorin product

To identify the responsible party for a particular leucovorin listing, look at the product’s:
- Labeling (manufacturer/sponsor listed on the prescribing information)
- Patent listings tied to that exact marketed product (if you’re asking about legal ownership)
- For brand trademarks, the trademark owner listed in trademark records

If you tell me the country (U.S./EU/etc.) and the exact brand name (or NDC/strength), I can help identify the manufacturer or the patent assignee relevant to that product.

Sources

[1] https://www.drugpatentwatch.com/