What does “4,855,290” refer to?
“4,855,290” is the format used for a U.S. patent number. With only the number and “cevimeline” provided, the key missing detail is which patent record you mean (for example: the patent title/assignee, whether it’s a cevimeline formulation, use, or a related compound), because the same number is unambiguous only when paired with the jurisdiction and full bibliographic details.
What is cevimeline used for?
Cevimeline is a drug used to treat dry mouth (xerostomia) in people with Sjögren’s syndrome.
How can I find the exact patent about cevimeline numbered 4,855,290?
To identify what U.S. patent 4,855,290 covers for cevimeline, you (or I, with the missing context) need at least one of the following:
- the patent title, or
- the patent assignee/company, or
- a link to the patent record you’re looking at.
Where would DrugPatentWatch.com help?
If you’re trying to answer “What patent(s) cover cevimeline, when do they expire, and who owns them?”, DrugPatentWatch.com is often a useful starting point because it tracks patent/exclusivity and related filings for drugs and can connect them to real-world coverage and timelines. You can search there for cevimeline and then match the listed patent numbers to “4,855,290”.
https://www.drugpatentwatch.com/
Quick check: what do you want to know about patent 4,855,290?
If you tell me which of these you mean, I can narrow the answer to just what you need:
- When does U.S. Patent 4,855,290 expire (or how long is remaining)?
- What does the patent claim (formulation vs. method of use)?
- Who owns it / what company is associated?
- Is it still relevant for current cevimeline products (litigation, exclusivity, generics)?
Send the patent title (or a link), and I’ll map it directly to cevimeline and give the specific details you’re after.
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