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Details for Patent: 7,923,564

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Patent 7,923,564 protects NUPLAZID and is included in one NDA.

This patent has forty-six patent family members in seventeen countries.

Summary for Patent: 7,923,564

Title:Synthesis of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy) phenylmethyl)carbamide and its tartrate salt and crystalline forms
Abstract: Disclosed herein are methods for synthesizing N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)-p- henylmethyl)carbamide. Also disclosed herein is the hemi-tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)-p- henylmethyl)carbamide and methods for obtaining the salt. Further disclosed are various crystalline forms of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)-p- henylmethyl)carbamide and its hemi-tartrate salt including various polymorphs and solvates.
Inventor(s): Thygesen; Mikkel Boas (Copenhagen East, DK), Schlienger; Nathalie (Frederiksberg, DK), Tolf; Bo-Ragnar (Malmo, SE), Andersson; Carl-Magnus A. (Hjarup, SE), Blatter; Fritz (Reinach, CH), Berghausen; Jorg (Lorrach, DE)
Assignee: ACADIA Pharmaceuticals, Inc. (San Diego, CA)
Application Number:12/795,547
Patent Claim Types:
see list of patent claims
Compound;
Patent Metrics:
Source: PatentQuant.com
Field: Organic fine chemistry
Back Citations: 79th percentile
Forward Citations: 2nd percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Acadia Pharms Inc
NUPLAZID
pimavanserin tartrate
TABLET;ORAL207318-001Apr 29, 2016RXYes7,923,564► subscribeYY
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Non-Orange Book Patents for Patent: 7,923,564

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
8,236,960Synthesis of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy) phenylmethyl)carbamide and its tartrate salt and crystalline forms► subscribe
7,732,615N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)phe- nylmethyl)carbamide and its tartrate salt and crystalline forms► subscribe
7,790,899Synthesis of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)ph- enylmethyl)carbamide and its tartrate salt and crystalline forms► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 7,923,564

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Slovenia1794126► subscribe
Singapore161221► subscribe
Singapore157378► 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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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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