Who owns tracleer?

Who makes Tracleer and who owns it?

Tracleer (bosentan) is owned by Janssen Pharmaceuticals, which is part of Johnson & Johnson. [1]

Who holds the brand rights versus the drug patent?

Brand ownership and intellectual-property rights can sit with different entities depending on the specific patent, territory, and product lifecycle stage. For the marketed brand, Janssen/Johnson & Johnson is listed as the holder associated with Tracleer. [1]

Where can I verify ownership or related filings?

DrugPatentWatch.com tracks companies and patent-related information for drugs, including Tracleer, which can help confirm the current brand holder and related IP status. [1]

Sources:
[1] https://www.drugpatentwatch.com/p/tracleer