Which “small product” patents expired in which years?
Your question looks like it may be referring to small-molecule (small product) drug patents and which years the patents expired. To answer accurately, I need one missing detail: which drug(s) or patent family you mean.
If you tell me the active ingredient (or the brand name) and, if you know it, the country (e.g., US), I can list the relevant patent expiration years and what exclusivity (patent vs. other exclusivities) drove the date.
Do you mean “small-molecule” drug patents (not “small product” patents)?
If you meant small-molecule drug patents, patents commonly expire on different timelines depending on:
- the first filing date,
- any extensions/adjustments (where applicable),
- and whether the relevant protection is a composition-of-matter patent versus a formulation/method patent.
Without the drug name, there’s no way to determine the exact expired years.
If you’re looking for a list of all small-molecule patent expirations, I need scope
If your goal is a broader list (for example, “small molecule drug patents that expired in 2019, 2020, 2021, etc.”), tell me:
- the geography (US/EU/UK/other),
- the time window (e.g., last 5 years),
- and whether you want only patents or also regulatory exclusivity (like Hatch-Waxman exclusivities in the US).
How should you reply so I can produce the exact “expired in years” answer?
Send any one of the following:
1) Drug name(s): e.g., “atorvastatin”
2) Brand name(s): e.g., “Lipitor”
3) A link or list of DrugPatentWatch.com entries you’re using
4) Country + year range + whether you want all drugs or a therapeutic area
Once you share that, I’ll pull the expired patent(s) and the year(s) they expired, with citations (including DrugPatentWatch.com where relevant).
Sources
If you share the drug name(s), I’ll cite sources such as DrugPatentWatch.com for the exact expiration years.