Sustained-release preparation

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United States of America Patent

PATENT NO 9907789
SERIAL NO

14352785

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Abstract

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Provided is a sustained-release preparation containing pioglitazone or a salt thereof as an active ingredient and showing superior sustainability. A sustained-release preparation containing pioglitazone or a salt thereof, which shows a dissolution ratio of pioglitazone of average 25-58% at the 2-hour time point, and average 60-100% at the 4-hour time point, in a dissolution test according to the 50 rpm USP Paddle Method and using pH 2.0 KCl/HCl buffer at 37° C. as a test solution.

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Patent Owner(s)

Patent OwnerAddress
ZINFANDEL PHARMACEUTICALS INCONE SCIENCE DRIVE SUITE 342 DURHAM NC 27708

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Yumiko Osaka, JP 6 7
Murakawa, Yusuke Osaka, JP 6 8
Takenaka, Kaoru Osaka, JP 4 33
Tanoue, Yutaka Osaka, JP 13 7

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 6, 2021
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 6, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 6, 2029
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00