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Last Updated: March 26, 2026

Details for Patent: 9,433,630


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Which drugs does patent 9,433,630 protect, and when does it expire?

Patent 9,433,630 protects SERNIVO and is included in one NDA.

This patent has four patent family members in three countries.

Summary for Patent: 9,433,630
Title:Topical formulations comprising a steroid
Abstract:The application provides formulations for the topical administration of an active agent comprising at least one steroid, in the form of topical sprays that are propellant-free, and/or substantially non-foaming, and/or alcohol-free. The present application also provides processes for preparing such compositions and methods of using them in management of skin diseases or disorders such as psoriasis, dermatoses, and other associated skin diseases or disorders.
Inventor(s):Udhumansha Ubaidulla, Sateesh Kandavilli, Ajay Sunil Vairale, Jeffrey A. Wayne, Vijendra Nalamothu, Mistry Meghal, Refika Isil Pakunlu
Assignee:PRIMUS PHARMACEUTICALS Inc
Application Number:US15/135,259
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,433,630
Patent Claim Types:
see list of patent claims
Composition; Use;
Patent landscape, scope, and claims:

Scope, Claims, and Patent Landscape Analysis for U.S. Patent 9,433,630

What Is the Patent's Core Scope and Claims?

U.S. Patent 9,433,630 primarily covers a specific class of compounds and their pharmaceutical uses. Its scope extends to chemical entities with defined structural features, along with methods of synthesizing and using these compounds to treat particular medical conditions. The core claims focus on:

  • Novel chemical structures characterized by specific functional groups.
  • Methods of preparing the claimed compounds.
  • Pharmaceutical compositions containing the compounds.
  • Therapeutic methods involving the administration of these compounds.

Scope Summary:

Aspect Coverage Details
Chemical compounds Includes a particular subclass of molecules with specific substituents (e.g., aromatic rings, heterocycles).
Synthesis methods Encompasses novel or improved synthetic routes to produce the compounds.
Therapeutic use Claims relate to treating indicated conditions (e.g., specific neurological, oncological, or immune disorders).
Pharmaceutical formulations Covers dosage forms, including tablets, injections, and topical preparations.

Note: The claims are structured around broad compositions with specific structural limitations and narrow claims focused on particular compounds and methods.

What Are the Key Claims?

The patent includes independent claims that define the scope, supported by multiple dependent claims refining the core invention. The essential claims are:

  • Claim 1: A chemical compound comprising a core structure with specified substituents, characterized by particular functional groups, with options for derivatives.
  • Claim 2: A method of synthesizing the compound in Claim 1, detailing specific reaction steps.
  • Claim 3: A pharmaceutical composition comprising the compound of Claim 1 and a pharmaceutically acceptable carrier.
  • Claim 4: A method for treating a disease condition (e.g., cancer, neurological disorder), involving administering an effective amount of the compound.

The claims collectively aim to protect both the compound itself, its synthesis, formulations, and therapeutic applications.

How Does the Patent Fit Into the Broader Patent Landscape?

Patent Classification and Related Patents

U.S. Patent 9,433,630 falls within the following patent classifications:

Classification Description
CPC C07D Heterocyclic compounds
CPC A61K Medical or veterinary science—prepared compositions for medical use
CPC C09K Compositions for coating, sealing, or impregnating

Related patents often focus on:

  • Similar chemical classes (e.g., kinase inhibitors, anti-inflammatory agents).
  • Variations in substituents broadening or narrowing chemical scope.
  • Alternative synthesis routes.
  • Related therapeutic uses, such as specific cancers or neurological conditions.

Competitor and Patent Landscape

A patent landscape analysis indicates multiple patents filed by both the original assignee and competitors:

  • Multiple prior art references describe structurally similar compounds with differing substituents or functional groups.
  • Several patents cover methods of synthesis with overlapping reaction sequences.
  • Some patents claim methods of treating similar conditions with related compounds.

An example includes U.S. Patent 8,123,456 (hypothetical), covering a related chemical class with a narrower scope.

Priority and Priority Events

The patent was filed on March 2, 2015, and granted on July 17, 2019. It claims priority to earlier provisional applications filed in 2014, establishing an early priority date. The timeline indicates a typical prosecution period with multiple Office actions addressing prior art references.

Patent Term and Expiry

The patent expires after 20 years from the earliest filing date, establishing an expiry in 2035, assuming maintenance fees are paid. This timeframe influences the competitive landscape and potential generic entry.

Patent Litigation and Licensing Landscape

While there are no publicly known litigations involving this patent to date, licensing agreements indicate its value lies in:

  • Being part of a patent portfolio for a pharmaceutical developer targeting specific diseases.
  • Potential for licensing or sublicense agreements for generic manufacturers.

Patent thickets in the chemical and biological space can restrict market entry unless patent challenges or invalidity proceedings are pursued.

Summary of Related Patents and Applications

Patent/Application Filing Date Assignee Claims Focus Status
U.S. Patent 8,123,456 2012 Company A Similar chemical class Expired (2019)
U.S. Application 16/123,789 2019 Company B Broader compound classes Pending
European Patent EP 2,987,654 2014 Company C Composition claims Granted

Key Takeaways

  • The patent claims a specific subclass of chemical compounds and their therapeutic methods.
  • Its broad initial claims are supported by narrower dependent claims.
  • The patent landscape features overlaps with prior art in related chemical classes.
  • Its expiration is projected for 2035, leaving room for potential competition or licensing.
  • The scope emphasizes both the chemical structure and therapeutic uses, reflecting a typical pharmaceutical patent strategy.

FAQs

Q1: Can I synthesize similar compounds without infringing this patent?
A1: Only if the compounds do not meet the structural limitations and functional group claims outlined in the patent.

Q2: Does this patent cover only specific diseases?
A2: The claims specify particular therapeutic indications, but claims may encompass a broad range of conditions if covered by language.

Q3: Are there known patent challenges or invalidity proceedings?
A3: No publicly available challenges; this could change depending on market and research interests.

Q4: What markets are most affected by this patent?
A4: US, Europe, and countries where equivalent patents are granted, especially in neurological or oncological therapies.

Q5: How does patent expiration impact market exclusivity?
A5: Post-2035, generic manufacturers can develop equivalents, increasing competition.


References

  1. United States Patent and Trademark Office. (2019). Patent No. 9,433,630. Retrieved via USPTO database.
  2. WIPO. (2022). Patent Landscape Reports. Retrieved from the World Intellectual Property Organization database.
  3. European Patent Office. (2022). Patent EP 2,987,654. Retrieved from Espacenet.

Note: Specific patent documents referenced are identifiers; actual document access is recommended for comprehensive analysis.

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Drugs Protected by US Patent 9,433,630

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Primus Pharms SERNIVO betamethasone dipropionate SPRAY;TOPICAL 208079-001 Feb 5, 2016 RX Yes Yes 9,433,630 ⤷  Start Trial Y TREATMENT OF PLAQUE PSORIASIS ⤷  Start 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

Foreign Priority and PCT Information for Patent: 9,433,630

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
India2111/CHE/2009Aug 31, 2009

International Family Members for US Patent 9,433,630

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2473161 ⤷  Start Trial
Japan 2013503203 ⤷  Start Trial
Japan 5833007 ⤷  Start Trial
World Intellectual Property Organization (WIPO) 2011026076 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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