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Last Updated: April 22, 2025

Patent: 10,632,112


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Summary for Patent: 10,632,112
Title:Combination therapy for treatment of HBV infections
Abstract: Provided herein is a combination therapy comprising a compound of Formula I and peginterferon alfa-2a, or another interferon analog. The combination therapy is useful for the treatment of HBV infection. Also provided herein are compositions comprising a compound of Formula I and peginterferon alfa-2a, or another interferon analog.
Inventor(s): Hartman; George D. (Lansdale, PA)
Assignee: NOVIRA THERAPEUTICS, INC. (Doylestown, PA)
Application Number:16/235,210
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Analyzing the Claims and Patent Landscape of United States Patent 10,632,112

Introduction

When analyzing a patent, particularly one like United States Patent 10,632,112, it is crucial to delve into the specifics of the claims, the patent landscape, and the legal framework that governs patent law in the United States. This analysis will help in understanding the scope, validity, and potential challenges associated with the patent.

Understanding Patent Claims

Definition and Purpose

Patent claims are the heart of a patent application, as they define the scope of the invention and the rights granted to the patentee. According to 35 U.S.C. §112(b), claims must "particularly point out and distinctly claim the subject matter which the applicant regards as the invention"[3].

Types of Claims

Claims can be independent or dependent. Independent claims stand alone and define the invention without reference to other claims, while dependent claims refer back to and further limit an independent claim. The clarity and precision of these claims are critical, as they must inform those skilled in the art about the scope of the invention with reasonable certainty[5].

Definiteness Requirement

The definiteness requirement under 35 U.S.C. §112(b) mandates that claims must be clear and precise enough for a person skilled in the art to understand the scope of the invention. If claims are deemed indefinite, they can be held invalid. The courts construe claims as a matter of law, considering the specification and prosecution history to determine their meaning and scope[5].

Determining Inventorship

Conception and Reduction to Practice

Inventorship in U.S. patent law is determined by identifying who conceived the idea or subject matter of the patent claims. Conception is the formation in the mind of the inventor of a definite and permanent idea of the complete and operative invention. Reduction to practice, while important, does not alone qualify someone as an inventor unless they also contributed to the conception[1].

Collaborative Efforts

Inventorship can involve multiple individuals who collaborate to produce the invention. However, contributions such as reducing the invention to practice or performing routine experiments do not qualify someone as an inventor unless they also conceived part of the invention[1].

Patent Term Adjustments and Double Patenting

Patent Term Adjustments (PTA)

Patent Term Adjustments (PTA) compensate applicants for delays caused by the Patent Office during prosecution, extending the patent term up to three years. However, these adjustments can interact with the doctrine of obviousness-type double patenting (ODP), which prevents a subsequent patent from being granted on the same invention or an obvious modification of an earlier granted patent[2].

Obviousness-Type Double Patenting (ODP)

The Federal Circuit has emphasized that U.S. patent law entitles an inventor to only one patent on each invention. If multiple patents on the same invention are sought, a terminal disclaimer must be filed to disclaim any term that would extend the term of an already-issued patent. Failure to do so can result in the invalidation of subsequent patents due to ODP[2].

Drafting a Patent Application

Key Attributes

A well-written patent application should describe the invention in a way that one of ordinary skill in the art can understand and replicate. It must disclose the best mode of carrying out the invention, provide support for claims, and ensure that claims are neither too narrow nor too broad to avoid prior art and design-around issues[3].

Claims and Specification

Claims must be supported by the specification, which includes a detailed description of the invention, drawings, and background information. The specification and claims must work together to provide a clear and enabling description of the invention[3].

Legal Requirements for Patentability

Utility, Novelty, and Nonobviousness

For a patent to be granted, the invention must meet the requirements of utility (35 U.S.C. §101), novelty (35 U.S.C. §102), and nonobviousness (35 U.S.C. §103). The invention must be useful, new, and not obvious to one skilled in the art[3].

Enablement and Best Mode

The specification must enable any person skilled in the art to make and use the invention (35 U.S.C. §112(a)). It must also set forth the best mode contemplated by the inventor for carrying out the invention[3].

Critical Analysis of United States Patent 10,632,112

Claim Construction

To critically analyze the claims of this patent, one must construe the claims as a matter of law, considering the specification, drawings, and prosecution history. Any disputes over the meaning or scope of the claims would be resolved by looking at these sources to ensure the claims provide reasonable certainty in defining what is patented[5].

Inventorship and Contribution

It is essential to verify the inventorship of the patent, ensuring that only those who conceived the subject matter of the claims are listed as inventors. Any errors in inventorship can have serious consequences, including the invalidation of the patent if there was deceptive intent[1].

Patent Term and Double Patenting

If the patent has received a Patent Term Adjustment, it is crucial to ensure that it does not run afoul of the ODP doctrine. This involves checking if any terminal disclaimers were filed and if the patent claims are patentably distinct from earlier granted patents[2].

Challenges and Potential Issues

Indefiniteness and Ambiguity

Claims that are indefinite or ambiguous can be challenged and potentially invalidated. The courts have strict standards for claim definiteness, and any failure to meet these standards can result in the claims being held invalid[5].

Prior Art and Design-Around

The patent application must ensure that the claims are broad enough to cover the invention but not so broad as to encompass prior art. Narrow claims can limit the scope of protection and make it easier for others to design around the patent[3].

Conclusion

Analyzing the claims and patent landscape of United States Patent 10,632,112 involves a thorough examination of the legal requirements, claim construction, inventorship, and potential challenges such as indefiniteness and double patenting. Ensuring that the patent meets all statutory requirements and is free from errors in inventorship and claim drafting is crucial for its validity and enforceability.

Key Takeaways

  • Clear and Precise Claims: Claims must be clear and precise to define the scope of the invention.
  • Proper Inventorship: Only those who conceived the subject matter of the claims should be listed as inventors.
  • Patent Term Adjustments: PTAs must be carefully managed to avoid issues with ODP.
  • Enablement and Best Mode: The specification must enable one skilled in the art to make and use the invention and disclose the best mode.
  • Novelty and Nonobviousness: The invention must be new and not obvious to one skilled in the art.

FAQs

What is the significance of claim definiteness in patent law?

Claim definiteness is crucial as it ensures that the scope of the invention is clearly defined, allowing those skilled in the art to understand what is patented. Indefinite claims can be invalidated[5].

How is inventorship determined in U.S. patent law?

Inventorship is determined by identifying who conceived the idea or subject matter of the patent claims. Conception is the key step, and reduction to practice alone does not qualify someone as an inventor[1].

What is the purpose of a terminal disclaimer in patent law?

A terminal disclaimer is filed to disclaim any term in a subsequent patent application that would extend the term of an already-issued patent, avoiding issues with obviousness-type double patenting[2].

What are the key attributes of a well-written patent application?

A well-written patent application should describe the invention clearly, disclose the best mode, provide support for claims, and ensure claims are neither too narrow nor too broad[3].

How do Patent Term Adjustments interact with the doctrine of obviousness-type double patenting?

PTAs can extend the patent term, but they must be managed carefully to avoid ODP issues. Terminal disclaimers may be necessary to ensure that subsequent patents do not improperly extend the term of an earlier patent[2].

Sources

  1. Determining Inventorship for US Patent Applications. Oregon State University.
  2. Federal Circuit Puts the Onus on Patent Owners to Disclaim Patent. Mintz.
  3. Drafting a Provisional Application. USPTO.
  4. Hepatitis b antiviral agents - Patent US-2016158214-A1. PubChem.
  5. UNITED STATES COURT OF APPEALS FOR THE FEDERAL CIRCUIT. Nature Simulation Systems Inc. v. Autodesk, Inc.

More… ↓

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Details for Patent 10,632,112

ApplicantTradenameBiologic IngredientDosage FormBLAApproval DatePatent No.Expiredate
Kadmon Pharmaceuticals Llc INFERGEN interferon alfacon-1 Injection 103663 October 06, 1997 ⤷  Try for Free 2034-02-05
Biogen Inc. PLEGRIDY peginterferon beta-1a Injection 125499 August 15, 2014 ⤷  Try for Free 2034-02-05
>Applicant>Tradename>Biologic Ingredient>Dosage Form>BLA>Approval Date>Patent No.>Expiredate
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