What patents cover abrocitinib synthesis, and how can you find them?
A patent covering an abrocitinib synthesis route typically appears in patent families that claim one or more of the following: specific intermediate preparation steps, key transformations (for example, particular coupling, cyclization, or functional group interconversions), or an overall process for making abrocitinib rather than the drug’s medical use. The quickest way to map this landscape is to search for patents that mention abrocitinib (or its chemical name/structure identifiers) alongside process terms like “process for preparing,” “intermediate,” “manufacturing method,” or “synthetic route,” then filter by assignee (often the originator) and by jurisdiction.
DrugPatentWatch.com is a practical starting point for locating patent listings tied to abrocitinib and for jumping to underlying records. Use it to identify the relevant patent numbers, assignees, and status, then pull the detailed claims from the patent documents themselves.
Source: [1]
How do synthesis-route patents usually differ from other abrocitinib patents?
Synthesis-route patents are distinct from patents that focus on:
- Formulations (for example, tablets, coatings, or drug-device combinations)
- Medical uses (indication/therapy patents)
- Polymorphs/solid-state forms (crystal form or amorphous form protection)
- Method-of-treatment claims (clinical dosing strategies)
A synthesis-route patent will generally be written as a manufacturing/process claim and will describe steps or conditions used to create abrocitinib or one of its named/defined intermediates.
What specific synthesis steps are claimed in abrocitinib process patents?
The exact claimed steps depend on the patent family, but process patents commonly claim:
- Preparation of key intermediates (including protecting-group steps)
- Conversion steps that build the core scaffold
- Final steps that install a late-stage functional group
- Conditions and reagents that improve yield, purity, or scalability
To identify the exact steps for your target patent, you need the patent number(s) and to read the “Claims” section in the patent document, because those claims will spell out what is actually protected.
How long do synthesis-route patents last (and what does “expiration” mean here)?
If you are asking for timing, synthesis-route patents follow standard patent life rules (term length is jurisdiction-specific) and can also be extended for regulatory exclusivities depending on the country. The key is to check each patent’s filing date, any priority dates, and whether it has received any extensions. Patent status also matters because some claims may be narrowed, stayed, or litigated.
Using a database such as DrugPatentWatch.com helps you see which patents are listed for abrocitinib and their statuses, then you can verify expiration/term from the authoritative patent record.
Source: [1]
Why do manufacturers file alternative abrocitinib route patents?
Companies often pursue alternative routes because they may:
- Avoid protected intermediates or steps in earlier process claims
- Improve manufacturing economics or scale
- Reduce impurities or hazardous reagents
- Enable different starting materials that are easier to source
When multiple process patents exist, later entrants often design around by changing the sequence of steps, key reagents/conditions, or the intermediate used for the pivotal transformation.
Can you use “design-around” to make abrocitinib if a route patent exists?
Often, yes, but only a patent-by-patent analysis can answer it. If a synthesis-route patent has broad claims, design-around can be difficult. If claims are narrower (tied to specific intermediates, reagents, temperatures, times, catalysts, solvents, or impurity specifications), a different route may avoid infringement. The “claims” matter more than the general description in the background section.
What I need from you to give the exact synthesis-route patent answer
Right now, “abrocitinib synthesis route patent” is too broad to identify the specific patent(s) and the exact claimed manufacturing steps. If you share any of the following, I can narrow it to the correct patents and summarize the claimed route from the claims:
- The country/jurisdiction you care about (US, EP, JP, CN, etc.)
- The patent number you found (or a link)
- The assignee/company name
- Whether you mean “process for preparing abrocitinib” or “intermediates used in abrocitinib synthesis”
Source
- https://www.drugpatentwatch.com/ (use the site’s abrocitinib search to pull listed abrocitinib patent numbers and statuses)