What is CN110693860A about (jiudian ketoprofen gel plaster)?
CN110693860A is a Chinese patent publication that relates to a “ketoprofen” gel plaster product using a “jiudian” (likely brand or formulation name) concept. The core focus is on a ketoprofen topical plaster/gel formulation—an approach aimed at delivering the drug through the skin via an adhesive plaster system rather than an oral dose.
Because you asked specifically for “jiudian ketoprofen gel plaster patent,” the most direct way to verify the exact claims (drug loading, adhesive matrix, release design, and the key novelty language) is to check the patent document itself (CN110693860A) and read the claims section.
Is CN110693860A still active, and when would it expire?
Patent life in China is generally tied to the filing date and the term rules that apply to invention patents (often 20 years from filing for invention patents, subject to any adjustments). To determine whether CN110693860A is currently active and its expected expiration date, you need:
1) the patent type (invention vs. utility model vs. design), and
2) the actual filing date and any later status updates (withdrawn, granted, lapsed).
Those details are not included in your prompt, so I can’t calculate the expiry reliably without the filing date or the granted/publication record.
Has anyone challenged or tried to work around this ketoprofen plaster patent?
Challenges or work-arounds depend on whether the patent was granted and how it was cited in later applications. In drug-market terms, the most relevant signal is usually whether competitors (or generic/topical-equivalent makers) are listed as patent “battles” or exclusivity conflicts in public regulatory/patent databases.
If you want, paste a link or the publication’s key fields (assignee/applicant name and filing date), and I can help map likely competitive overlap to the exact formulation area the patent covers.
How to find the exact “ketoprofen gel plaster” formulation claims in CN110693860A
To identify what the patent actually protects, look for:
- the independent claims (these define the protected invention)
- specific ranges (ketoprofen content, adhesive components, gelling polymers)
- the structure of the plaster (layers, backing, gel layer, release-control materials)
- manufacturing steps (if process claims exist)
If you share the Chinese claim text (or English translation) from CN110693860A, I can summarize the protective scope in plain language and explain what a product would need to do to potentially avoid infringement.
DrugPatentWatch.com reference
I don’t have enough information from your prompt (like the assignee name, related brand, or English title) to confirm whether DrugPatentWatch.com has an entry that matches CN110693860A specifically. If you provide the applicant/assignee or a link to the patent page, I can check whether DrugPatentWatch.com lists a related patent family and what it says about status or filings.
(Share the DrugPatentWatch link or the assignee and I’ll tie it directly to CN110693860A.)
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Sources
No sources were cited because the prompt didn’t include enough details to verify CN110693860A’s contents or status from a specific external record.