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Serving leading biopharmaceutical companies globally:

Farmers Insurance
Argus Health

Generated: November 25, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,391,802

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Summary for Patent: 4,391,802

Title: Method of treating leukemia or leukemoid diseases
Abstract:A method of leukemia or leukemoid disease treatment by administration of a vitamin D derivative with a hydroxyl group at 1.alpha.-position is disclosed. It is believed that the vitamin D derivative with a hydroxyl group at 1.alpha.-position is capable of treating cancer through redifferentiation of cancer cells and that this capability is inherent in vitamin D derivatives with a hydroxyl group at 1.alpha.-position.
Inventor(s): Suda; Tatsuo (Tachikawa, JP), Hirasawa; Yoshihei (Niigata, JP), Takahashi; Sachio (Niigata, JP), Abe; Etsuko (Tokyo, JP), Konno; Kunio (Tokyo, JP), Aoki; Tadao (Niigata, JP)
Assignee: Chugai Seiyaku Kabushiki Kaisha (Tokyo, JP)
Application Number:06/356,385
Patent Claim Types:
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Use; Dosage form;

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Foreign Priority and PCT Information for Patent: 4,391,802

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan56-35218Mar 13, 1981

International Patent Family for Patent: 4,391,802

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
JapanH0115484► Subscribe
JapanS57149224► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
Express Scripts

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