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Generated: May 25, 2019

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Details for Patent: 7,223,440

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Summary for Patent: 7,223,440
Title:Residual solvent extraction method and microparticles produced thereby
Abstract: Methods for preparing microparticles having reduced residual solvent levels. Microparticles are contacted with a non-aqueous washing system to reduce the level of residual solvent in the microparticles. Preferred non-aqueous washing systems include 100% ethanol and a blend of ethanol and heptane. A solvent blend of a hardening solvent and a washing solvent can be used to harden and wash microparticles in a single step, thereby eliminating the need for a post-hardening wash step.
Inventor(s): Rickey; Michael E. (Loveland, OH), Ramstack; J. Michael (Lunenburg, MA), Kumar; Rajesh (Marlborough, MA)
Assignee: Alkermes, Inc. (Cambridge, MA)
Application Number:11/312,371
Prior Art and Litigation SupportOrder Prior Art and Litigation support for Patent 7,223,440
Patent Claim Types:
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Formulation; Process; Use;

Drugs Protected by US Patent 7,223,440

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Astrazeneca Ab BYDUREON exenatide synthetic FOR SUSPENSION, EXTENDED RELEASE;SUBCUTANEOUS 022200-001 Jan 27, 2012 RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial Y ➤ Try a Free Trial
Astrazeneca Ab BYDUREON PEN exenatide synthetic FOR SUSPENSION, EXTENDED RELEASE;SUBCUTANEOUS 022200-002 Feb 28, 2014 RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial Y ➤ Try a Free Trial
Astrazeneca Ab BYDUREON BCISE exenatide SUSPENSION, EXTENDED RELEASE;SUBCUTANEOUS 209210-001 Oct 20, 2017 RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial Y ➤ Try a Free Trial
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate

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QuintilesIMS
Mallinckrodt
Chubb
Fish and Richardson
Citi
Chinese Patent Office

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