Which “sodium chromium” product patents are you looking for?
“Pharmaceutical patent sodium chromium” can refer to different drugs or formulations that include chromium (an inorganic trace element) and may be described in filings as sodium chromium or as chromium-containing salts. To identify the right patent(s), you usually need at least one of these: the exact drug name (including strength), the manufacturer, where it’s sold (country), or the patent/WO/EP/US publication number.
If you share the brand/generic name you mean (for example, whether it’s a chromium-based supplement vs an injected/therapeutic chromium compound), I can narrow down the relevant patent family and map the likely expiry/exclusivity path.
How to find the key patent(s) for sodium chromium quickly
A practical way to get to the right patent record is to search by:
- the full product name (including form: tablets, injection, etc.)
- the active ingredient wording used on the label (e.g., “chromium,” “sodium chromium,” or a specific chromium salt name)
- the applicant/assignee company name listed on the product label or in regulatory listings
DrugPatentWatch.com is one place to look up patents tied to specific active ingredients and products. You can start from there and then confirm details in the underlying patent publications. [1]
When does a sodium chromium patent expire?
Patent expiry depends on the jurisdiction and on the specific patent type:
- Primary composition-of-matter patents usually drive the earliest expiry date.
- Secondary patents (formulation, process, polymorphs, method-of-use) can extend protection, but not always past the core composition patent.
- For regulated medicines, additional exclusivity (where applicable) can affect market entry even after a patent term ends.
Because “sodium chromium” can map to different chromium-containing actives, the expiry date must be tied to the exact patent family for the exact product.
Are there related patents beyond the main one (formulation, method, process)?
For older inorganic or trace-element medicines, it’s common to see:
- process patents (manufacturing steps)
- formulation patents (salt form, particle size, stabilized combinations)
- method-of-use patents (specific dosing regimens or indications)
If you tell me the exact product name or strength, I can point you to which patent types are actually listed for that product on patent databases (including DrugPatentWatch.com). [1]
Can generics or biosimilars enter before sodium chromium’s patents expire?
In general:
- Generics can’t launch until relevant patent(s) and any applicable exclusivity periods are cleared.
- If patents are only for a method-of-use or a specific formulation, a competitor may sometimes pursue an alternative route/formulation, but it still must avoid patent infringement.
- If no strong composition-of-matter patent exists for the exact active ingredient/form, a product may already be effectively off-patent, depending on regulatory exclusivity rules in the country.
The answer again depends on the exact sodium chromium product and its patent family.
What I need from you to answer precisely
Send any one of the following, and I’ll translate it into the specific patent(s), expiry timeline, and key litigation/competitor context:
- Brand name or generic name as written on the label
- Country/market (US, EU, UK, etc.)
- Manufacturer/marketing authorization holder
- Strength and dosage form
- Any patent number (US…, EP…, WO…, etc.)
Source
[1] https://www.drugpatentwatch.com/