What patent covers the emicizumab amino-acid sequence (SEQ ID NO)?
Emicizumab is the monoclonal antibody developed for hemophilia A. Patent filings that claim “the emicizumab amino acid sequence” typically do so by referring to one or more sequence identifiers (SEQ ID NO) in the claims or specification (for example, the full heavy-chain and light-chain variable regions and/or the full antibody sequences).
However, the exact SEQ ID NO and the specific patent that ties that SEQ ID number to emicizumab depends on which patent family and which document you mean (granted patent vs. published application; and which jurisdiction).
How to find the exact SEQ ID NO for emicizumab (fast method)
To identify “the patent for emicizumab amino acid sequence SEQ ID NO,” the most reliable approach is to search the patent text for the specific SEQ ID number and the sequence itself:
- Search patent databases (Google Patents, Lens.org, Espacenet) for:
- the applicant/assignee (commonly Chugai/Roche for emicizumab families), plus
- “emicizumab” and “SEQ ID NO”
- Then open the most relevant family members and check which publication contains:
- the SEQ ID NO designation, and
- the amino-acid sequence table that matches emicizumab.
If you paste the actual SEQ ID NO you have (for example, “SEQ ID NO: 12”) or the amino-acid string you’re looking at, I can point you to the correct family member more precisely.
Which patents are usually associated with emicizumab sequences?
In emicizumab patent families, sequence-based claims usually appear in:
- early antibody discovery/engineering applications (variable-region and antibody composition claims), and
- later process/variant/combination or formulation patents (which may reference sequences again, but not always the original SEQ IDs).
The “sequence SEQ ID NO” you see could therefore be in the early discovery patent, but it could also be repeated in a later publication that reprints sequence tables.
Can multiple patents claim the same emicizumab sequence?
Yes. The same antibody sequence can appear across multiple patent documents because:
- prosecution and continuation filings in different jurisdictions reuse the same sequence tables, and
- different claim sets may cover different aspects (sequence itself, specific substitutions, binding properties, or methods of use).
So “the” patent can be a family of related documents rather than a single number.
What I need from you to answer with a specific patent number
Your prompt includes: “emicizumab amino acid sequence seq id no patent,” but it does not include the specific SEQ ID NO value or the amino-acid sequence.
Reply with one of the following, and I’ll identify the exact patent(s):
1) the SEQ ID NO number you mean (e.g., SEQ ID NO: XX), or
2) the amino-acid sequence text you’re trying to match, or
3) a link or citation to the document/page where you saw the SEQ ID NO, or
4) your jurisdiction (US, EP, JP, WO) and the publication/application number if known.
Sources
No patent sources were provided in your message, so I can’t cite a specific patent document yet.