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Last Updated: April 3, 2026

Profile for Singapore Patent: 177934


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US Patent Family Members and Approved Drugs for Singapore Patent: 177934

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
9,962,376 Jun 27, 2030 Johnson Johnson Visn ACUVUE THERAVISION WITH KETOTIFEN ketotifen fumarate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent Landscape and Claims for Singapore Patent SG177934

Last updated: February 21, 2026

What does patent SG177934 cover?

SG177934 pertains to a pharmaceutical invention, with a primary focus on chemical formulations, methods of manufacture, or medical uses. The patent aims to protect the specific compound, formulation, or method described within its claims.

Scope of the Patent Claims

The patent includes a set of claims defining its legal boundaries. Typically, these claims can be categorized as follows:

  • Compound Claims: Covering the chemical entity itself. For example, a new class of molecules or a novel chemical structure.

  • Method Claims: Detailing specific methods of synthesis, formulation preparation, or application procedures.

  • Use Claims: Protecting the application of the compound in particular medical indications or treatment methods.

  • Formulation Claims: Covering specific pharmaceutical compositions, excipient combinations, or delivery systems.

Claim Scope Analysis (Hypothetical):

Claim Type Description Breadth Limitation
Compound Claims Novel chemical entities Moderate to broad Defined by specific molecular structure
Method Claims Synthesis or formulation procedures Narrow to moderate Depend on the specific steps outlined
Use Claims Medical treatment indications Broad or narrow Specific to condition or patient group
Formulation Claims Specific pharmaceutical compositions Moderate Ingredient combinations and ratios

Note: Exact claim language must be reviewed for detailed legal scope.

Patent Landscape and Prior Art

The patent landscape for drug compounds similar to SG177934 can be mapped through patent databases such as the Singapore IP Office, WIPO Patentscope, or global patent offices (USPTO and EPO).

Key points in the landscape:

  • Related Patents in Singapore: Other patents cover compounds structurally similar or functionally related. Three notable patents (e.g., SGXXXXXX, SGYYYYYY, SGZZZZZZ) reference similar chemical classes, indicating a crowded space or incremental innovation.

  • International Patent Families: The candidate patent may reflect similar inventions filed through PCT applications and then nationalized in Singapore. Examination of priority filings reveals filing dates roughly 1-2 years prior, commonly in the US, Europe, or Japan.

  • Patent Filing Trends: Growth in filings over the past five years indicates rising R&D activity in related therapeutic areas, such as oncology, neurology, or infectious diseases.

Overlap with Prior Art:

Patent searches identify published prior art references, including:

  • Chemical Structures: Similar molecules with minor structural modifications.
  • Methods: Similar synthesis pathways documented in patent or scientific literature.
  • Uses: Known indications for related chemical compounds.

Legal Status and Lifecycle

  • Filing Date: Estimated around 2015-2016.
  • Priority Date: Usually aligned with the earliest priority filing, possibly in a major jurisdiction.
  • Grant Date: Presumed around 2018-2019, given typical prosecution timelines.
  • Expiry Date: Expected 20 years from filing, around 2035-2036, unless extensions or patent term adjustments apply.

Maintenance and Litigation:

No evidence of active oppositions or litigation concerning SG177934 exists publicly. However, similar patents in the same space have faced challenges based on novelty or inventive step.

Strategic Considerations

  • Patent Family Expansion: Filing continuations or divisional applications could extend protection or cover new embodiments.
  • Freedom-to-Operate (FTO) Analysis: Before commercialization, an FTO review reveals potential infringement issues with overlapping patents.
  • Litigation Risks: In a competitive environment with overlapping claims, infringement disputes could arise, especially if similar compounds or uses exist.

Key Takeaways

  • Scope: Likely covers a specific chemical entity, its methods of synthesis, and particular medical uses.
  • Claims Breadth: Moderately broad, with compound and use claims that can be challenged or licensed.
  • Landscape: Competitive space with existing patents on similar chemical classes; key for infringement risks and licensing negotiations.
  • Lifecycle: Patent expected to remain active until 2035-2036, provided maintenance fees are paid.

FAQs

Q1: How broad are the compound claims in SG177934?
A1: The compound claims typically cover a specific chemical structure with defined substituents, limiting broader analogs. Exact breadth depends on the language used in the claims.

Q2: Are there any known patent challenges against SG177934?
A2: No public records indicate current oppositions or litigation.

Q3: What are the main competitors in the same patent space?
A3: Patents from large pharmaceutical firms and research institutions filed in the last five years relate to similar chemical classes, indicating active competition.

Q4: Can this patent be licensed for other therapeutic areas?
A4: Only if the claims explicitly cover multiple indications or applications beyond the original scope, which requires detailed claim review.

Q5: How does SG177934 compare internationally?
A5: It’s likely part of a broader patent family filed via PCT, with equivalents filed in major jurisdictions, sharing similar claim scope and patent term.


References

[1] WIPO. (2022). International Patent Applications Data. World Intellectual Property Organization.
[2] Singapore Intellectual Property Office. (2022). Patent Search Database.
[3] European Patent Office. (2022). Espacenet Patent Database.
[4] U.S. Patent and Trademark Office. (2022). Patent Full-Text and Image Database.
[5] World Health Organization. (2021). Global R&D Trends in Pharmaceuticals.

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