ST26 Sequence Listing Services for Easy and Compliant Patent Filing

What is ST26 and Why Is It Important?

The ST26 format is a global standard set by WIPO for sequence listings in biotech patent applications. It has officially replaced the older ST.25 format and is now required by patent offices worldwide.

ST26 uses XML, a structured and readable format, to ensure all biological sequence data is submitted consistently. This improves clarity and helps examiners understand your invention better. However, the new format involves strict technical rules that can be challenging without proper expertise.

Key Features of the ST26 Format

ST26 brings major improvements to sequence listings. These changes help present the data more clearly while meeting international standards. Here are the most notable features:

XML Format: Ensures clean, structured, and machine-readable data.
Advanced Sequence Support: Covers branched sequences and D-amino acids.
Modified Residue Tagging: All modified elements must be clearly annotated.
Detailed Feature Labels: Better description of regions, domains, and other elements.

These additions improve the quality of sequence listings but also demand more time and care during preparation.

Our ST26 Services: Complete and Compliant

We offer full ST26 sequence listing services for biotech researchers, inventors, and patent attorneys. Whether you're creating a new listing or converting one from the ST.25 format, our team ensures it’s done correctly.

Our services include:

Preparation of new ST26-compliant XML listings
ST.25 to ST26 format conversions
Validation using WIPO's official tools
Fixing formatting and data structure errors
Personalized consulting for clear sequence disclosure

We make sure your file meets all legal and technical standards before submission.

Why Choose Our Team for ST26 Listings?

We’ve helped hundreds of clients around the world submit accurate and validated sequence listings. Our team knows the ST26 standard in depth and uses proven tools to avoid delays, rejections, or formatting issues.

Here’s what sets us apart:

Years of experience with ST26 and biotech sequence data
Fast delivery of high-quality, compliant listings
Zero rejections due to formatting problems
Supportive guidance and clear communication at every step

With us, you get peace of mind and a listing that’s ready for approval.

Start Your ST26 Submission With Confidence

Preparing a ST26 sequence listing can feel overwhelming, but it doesn’t have to be. Let our experts take care of the technical details while you focus on your invention.

Reach out today for a free consultation. We’ll help you prepare and submit your sequence listing correctly, on time, and with full WIPO compliance.

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