See the DrugPatentWatch profile for histamine
Does a “histamine biosynthesis” claim show up in Google Patents as a U.S. patent application?
Google Patents often aggregates patent documents from multiple jurisdictions. If you search for “histamine biosynthesis” (or similar terms) on Google Patents, entries that relate to U.S. filings will typically show as either:
- A U.S. patent application (often published as a “US” publication, such as US 20xx/xxxxx), or
- A U.S. patent (granted document).
Google Patents also shows “Application” vs “Patent” status depending on the record.
How can you tell if the specific record is a U.S. application vs a granted U.S. patent?
On the Google Patents result page, look for fields like:
- Publication number starting with “US” (this usually indicates a published U.S. document)
- Document type (application publication vs granted patent)
- “Assignee” and filing/publication dates
If the record is a U.S. application publication, it will usually include an application/publication date but may not have a grant date.
What search terms work better than “histamine biosynthesis”?
“Histamine biosynthesis” is not the only phrasing used in filings. Google Patents searches often match better when you include related terms such as:
- “histidine decarboxylase” (the key enzyme in histamine production)
- “HDC” (abbreviation used in some documents)
- “decarboxylation” + “histamine”
- “serotonin/histamine” pathways (sometimes claims appear in broader neurotransmitter context)
If you share the Google Patents link or the exact claim text you’re looking at, I can help identify whether it maps to a U.S. application record (and which one).
Does Google Patents show “claim US” or does it list the jurisdiction automatically?
Google Patents does not usually present “claim US” as a phrase meaning “this claim is U.S.-only.” Instead, the jurisdiction is reflected in the document’s publication number and metadata. So whether something is a U.S. application is determined by the document record (e.g., “US” publication number), not by the wording “US” in the claim itself.
What if the claim is from a non-U.S. patent—will Google Patents still show “US”?
Yes. A single family of patents can include both U.S. and non-U.S. filings. Google Patents typically groups them as a patent family. One family member might be filed in the U.S. (and therefore appear as a “US” record), even if the original concept started elsewhere.
If you want an exact answer, send one of these
To determine whether “histamine biosynthesis” claims in Google Patents correspond to a specific U.S. patent application, I need either:
- The Google Patents URL you found, or
- The Google Patents publication number (e.g., something starting with “US”), or
- The assignee + approximate filing year + a snippet of the claim.
With that, I can tell you which U.S. publication(s) match and whether they are applications or granted patents.