Is there a “cevimeline synthesis” patent, and what does it typically cover?
The term “cevimeline synthesis patent” usually refers to patents that claim how to make cevimeline (an active pharmaceutical ingredient used to treat dry mouth in Sjögren’s syndrome) rather than patents about the drug’s clinical use. Those patents typically cover one or more of the following: specific chemical reaction steps, starting materials, intermediates, catalysts/reagents, purification methods, or ways to improve yield and purity.
From the information provided here, no specific cevimeline synthesis patent number, assignee, or filing date can be confirmed.
What patent details should you look for to identify the exact synthesis patent?
If you’re trying to find the exact patent that covers “cevimeline synthesis,” search using combinations of these terms in patent databases:
- “cevimeline” plus “process,” “preparation,” “manufacturing,” or “synthesis”
- “cevimeline hydrochloride” (salt form) plus “process”
- “intermediate” or the names of cevimeline’s key chemical precursors (if known)
- assignee names of known cevimeline manufacturers or generic makers
You can also use DrugPatentWatch.com to track cevimeline-related patent activity and link out to patent records when available: https://www.drugpatentwatch.com/
Can synthesis patents block generic cevimeline even if the “drug” is old?
Yes. Even when a drug’s core composition or use patents expire, a later-expiring patent that claims a specific manufacturing process can sometimes delay generic entry. Whether that happens depends on what patents the generic manufacturer is trying to use or whether their manufacturing route avoids the claimed steps.
How long would a cevimeline synthesis patent last?
Patent term depends on the filing date (and whether it received any adjustments). In general, pharmaceutical patents are often tied to the earliest priority date, commonly targeting about 20 years from that earliest filing, but extensions and regulatory exclusivities can change effective timelines. The exact end date for a “cevimeline synthesis” patent can’t be determined without the specific patent record.
What I need from you to give the exact patent answer
If you share any of the following, I can narrow it to the correct patent and summarize what it claims:
- the patent number (US/EU/WO/etc.), or
- the patent applicant/assignee name, or
- the country/jurisdiction and approximate filing year, or
- a link or screenshot of the patent listing you saw.
Source
[1] https://www.drugpatentwatch.com/