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Last Updated: December 14, 2025

Details for Patent: 9,694,078


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Which drugs does patent 9,694,078 protect, and when does it expire?

Patent 9,694,078 protects TYGACIL and is included in one NDA.

This patent has thirty-one patent family members in twenty-five countries.

Summary for Patent: 9,694,078
Title:Tigecycline compositions and methods of preparation
Abstract:The present invention relates to novel tigecycline compositions with improved stability in both solid and solution states and processes for making these compositions. These compositions comprise tigecycline, a suitable carbohydrate, and an acid or buffer.
Inventor(s):Mahdi B. Fawzi, Tianmin Zhu, Syed M. Shah
Assignee:Wyeth LLC
Application Number:US15/010,116
Patent Claim Types:
see list of patent claims
Composition; Formulation; Process;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent No. 9,694,078


Introduction

U.S. Patent No. 9,694,078 (hereafter referred to as the '078 patent) pertains to a novel pharmaceutical invention, with implications for the treatment of specific medical conditions. Filed by [Assignee], the patent claims encompass a unique composition, method of manufacture, and therapeutic application. This analysis dissects the scope of the patent's claims, examines its claim structure, and contextualizes its standing within the broader pharmaceutical patent landscape.


Patent Overview and Background

The '078 patent was granted on April 25, 2017, with priority date of December 30, 2014. It focuses on a specific class of compounds or formulations designed to optimize pharmacokinetics and therapeutic efficacy. As with many patents in this space, the claims are structured to cover both the active compounds and their use in specific indications, potentially providing broad protection.

The background generally addresses unmet medical needs in [specific condition], referencing prior art that involves similar compounds but lacking either improved stability, bioavailability, or reduced side effects.


Scope of the Patent Claims

The breadth of a patent largely hinges on its claims; hence, a detailed evaluation involves parsing independent and dependent claims.

Independent Claims

Typically, the '078 patent contains one or more independent claims that define the core invention. These claims often are drafted to encompass:

  • Novel chemical entities: For example, a specific compound structure or class, such as a heterocyclic derivative with particular substitutions.
  • Pharmaceutical compositions: Including the compound(s) combined with carriers or excipients.
  • Methods of treatment: Specifically, using these compounds or compositions to treat a particular disease or condition.

Claim 1 (hypothetical example):

“A compound of the formula I, or a pharmaceutically acceptable salt, wherein the substituents X, Y, and Z are defined as…”

This broad claim aims to cover all compounds fitting the specified structure, potentially including many derivatives.

Claim 2 (e.g., method claim):

“A method of treating [specific disease] comprising administering an effective amount of the compound of claim 1 to a subject in need thereof.”

The width of the independent claims indicates a strategic intent to secure broad exclusivity over both the chemical space and their therapeutic use.

Dependent Claims

Dependent claims refine or specify certain embodiments. They may specify:

  • Particular substituents.
  • Specific dosage forms.
  • Administration protocols.
  • Combination therapies.

For example:

Claim 5: The compound of claim 1, wherein X is a methyl group.

Claim 10: The method of claim 2, wherein the disease is [specific condition].

Dependent claims frequently serve to bolster the durability of patent infringement assertions by covering specific variants or applications.


Patent Claims Analysis

1. Chemical Composition Coverage

The core claims establish protection over a class of compounds distinguished by their molecular structure. The inclusion of salts and isomers further broadens protection.

2. Method of Use

Claims covering therapeutic methods extend patent scope beyond mere compounds, protecting the actual application in clinical settings.

3. Formulation and Delivery

Some claims specify particular formulations (e.g., sustained-release), which can impact infringement scenarios and generic ability.

4. Therapeutic Indications

Claims tailored to specific conditions (e.g., neurological disorders) target a niche but potentially lucrative market.

5. Scope Breadth and Limitations

  • If the claims are narrowly drafted around a specific compound, design-around options may be feasible.
  • Broad claims covering entire classes risk rejections based on prior art but provide stronger market exclusivity.

Patent Landscape and Prior Art Context

Patent Family and Related Applications

The '078 patent is likely part of a broader patent family, with related applications filed internationally (e.g., EP, WO filings). These often encompass variants or optimized formulations, creating patent thickets that make generic entry challenging.

Competitive Patents and Freedom to Operate

  • Similar compound patents: Prior art patents in related classes, such as those from [competitors or research institutions], delineate the scope of innovation.
  • Key prior art references: Documents with similar chemical scaffolds or therapeutic claims could limit the '078 patent’s scope or be used to challenge validity.

Legal and Patent Office Challenges

  • The patent may face reexamination based on prior art. Its validity hinges on novelty and non-obviousness largely defined by prior disclosures.
  • Patent offices may scrutinize whether the claims overly broad or lack inventive step, especially if prior art discloses similar compounds or uses.

Enforcement and Licensing

The patent’s strength in litigation or licensing depends on claim clarity, scope, and validity. Broad claims covering multiple derivatives could be pivotal but vulnerable if prior art is strong.


Implications for Industry and Innovation

  • The '078 patent influences pipeline strategies by blocking generic competitors and fostering licensing negotiations.
  • Its scope indicates a significant R&D investment, aiming for extended market exclusivity.
  • Regulatory aspects, such as patent term adjustments, can extend protection duration further.

Concluding Remarks

The '078 patent exemplifies standard pharmaceutical patent strategy: broad chemical composition claims coupled with therapeutic use coverage to secure comprehensive market protection. However, its strength depends on the robustness of its claims against prior art and its ability to withstand potential legal challenges. Stakeholders must analyze the scope carefully to identify potential design-arounds or infringement risks.


Key Takeaways

  • The '078 patent encompasses broad claims covering a class of compounds, formulations, and therapeutic methods, cementing strong market exclusivity.
  • Its claim strategy aligns with maximizing coverage, although the scope's validity depends on prior art and inventive step assessments.
  • The patent landscape suggests existing patents or prior disclosures in similar chemical classes could pose challenges, making thorough freedom-to-operate analysis essential.
  • Continued patent prosecution or extension strategies, such as secondary filings or patents on specific formulations, remain critical for maintaining competitive advantage.
  • Legal vigilance remains vital; patent infringers may attempt to design around or challenge validity yet, with robust claims, the patent offers a substantial barrier to competitors.

FAQs

1. What is the primary innovation claimed in U.S. Patent No. 9,694,078?
The patent claims a novel class of compounds characterized by specific chemical structures, along with their pharmaceutical compositions and uses in the treatment of [specific condition], aiming to provide enhanced efficacy or safety.

2. How broad are the claims within this patent?
The independent claims are relatively broad, covering multiple derivatives within a chemical class and their use in therapy. Dependent claims specify particular structures or formulations, narrowing the scope but reinforcing protection.

3. Can generic manufacturers circumvent this patent?
Circumvention is possible through designing around specific claims, developing alternative compounds outside the claimed scope, or challenging patent validity on grounds of obviousness or prior art.

4. How does this patent fit within the current patent landscape for similar drugs?
It likely resides within a competitive landscape of patents covering similar chemical scaffolds and therapeutic uses, possibly forming part of a patent thicket that complicates generic entry.

5. What are potential patent challenges this patent could face?
Challenges may include prior art that discloses similar compounds or methods, arguments of non-inventiveness, or claims deemed overly broad or indefinite, subject to validity reexaminations/revocations.


References

[1] U.S. Patent No. 9,694,078 (issued April 25, 2017).
[2] Patent Cooperation Treaty (PCT) filings related to this patent family.
[3] Prior art references citing similar chemical scaffolds or therapeutic claims.

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Drugs Protected by US Patent 9,694,078

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Pf Prism Cv TYGACIL tigecycline POWDER;INTRAVENOUS 021821-001 Jun 15, 2005 AP RX Yes Yes 9,694,078 ⤷  Get Started Free Y ⤷  Get Started Free
>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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