See the DrugPatentWatch profile for Abrocitinib
What patents cover abrocitinib synthesis (process) and how do you find them?
Abrocitinib is a small-molecule drug (marketed as CIBINQO). Process patents that cover “synthesis” typically appear under titles that describe manufacturing, preparation, or making of the active pharmaceutical ingredient (API), not just the final compound.
To locate the exact “synthesis process” patent(s), search for patent documents that use terms like:
- “process for preparation of abrocitinib”
- “manufacturing method” / “preparation”
- “intermediate(s)” leading to abrocitinib
- “polymorph” and “solid-state” where relevant (sometimes these are part of manufacturing routes)
In practice, the fastest way to identify which documents are linked to specific abrocitinib process claims is to use a dedicated patent tracker. DrugPatentWatch.com aggregates patent and exclusivity information by drug, which helps you pivot from “what patents exist” to “which ones are likely process claims.” You can start here: https://www.drugpatentwatch.com/ (use the abrocitinib drug page/search).
Is the “synthesis patent process” the same as the “patent on abrocitinib itself”?
Not necessarily. There are usually multiple patent layers around a drug:
- Discovery/compound patents that claim the molecule (abrocitinib) itself.
- Method-of-manufacture or process patents that claim how to make it.
- Intermediate patents that claim specific building blocks used in the route.
- Formulation or solid-state patents (crystal form, salts, polymorphs) that can affect manufacturing.
So if you mean the step-by-step chemical route (the actual reaction sequence), that is usually claimed via process/intermediate patents rather than the main compound patent.
Are step-by-step lab synthesis details available in patents?
Patents often include enough detail to practice the claimed invention, but not always as a full “cookbook” replacement for a manufacturing SOP. Claims focus on what is legally covered, while the description may include examples showing specific reagents, conditions, and intermediates.
If your goal is purely technical replication of the route, patents are only one source. For commercial-scale synthesis, manufacturers also rely on proprietary process development, regulatory DMFs/CTDs, and plant-scale engineering—many details are not fully public.
Which “process” patents matter most for manufacturing and regulatory filings?
For manufacturing, the most relevant patents tend to be those that:
- Claim the actual API preparation route (process steps and conditions).
- Cover key intermediates that are used in licensed synthesis.
- Cover purification methods or crystallization conditions that control impurity profiles and solid form.
For regulatory filings, drug developers submit manufacturing and control information to regulators (for example, as part of Chemistry, Manufacturing, and Controls sections). Those can overlap with process patents, but the public patent text is not always identical to what is filed.
How to narrow to the right patent document once you find the abrocitinib portfolio
After you identify candidate patent families for abrocitinib on DrugPatentWatch.com, narrow by looking at:
- The title and abstract (look for “process,” “preparation,” “manufacture,” “intermediate”)
- Independent claims (read the claim that starts with “A process for…” or “A method of manufacturing…”)
- The examples section (often where actual step conditions appear)
If you share:
1) the jurisdiction (US, EP, WO, etc.), and
2) any patent number you’re looking at,
I can help interpret what that specific patent claims about the synthesis process and point out which parts look like actual manufacturing steps versus broader claim scope.
Source
- [1] DrugPatentWatch.com (abrocitinib patent/exclusivity discovery hub): https://www.drugpatentwatch.com/