CAREGEN Neutralizing Peptide Against SARS-CoV-2, 2026
Summary
CAREGEN CO, LTD. filed US patent application US20260109734A1 on April 23, 2026, for a peptide with neutralizing activity against SARS-CoV-2, with an earlier filing date of October 22, 2025 (Application No. 19365687). The peptide specifically recognizes SARS-CoV-2 proteins, and the application covers three composition types: preventing infection, treating infection, and detecting SARS-CoV-2. Inventors include Yong Ji CHUNG, Eun Mi KIM, Eung Ji LEE, Young Min LEE, Han A KANG, and Min Kyeong JEONG. This published application does not create direct compliance obligations for third parties; entities developing similar therapeutic peptides may wish to review for prior art implications.
“The present invention relates to a peptide that specifically recognizes a protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or a portion thereof, a composition for preventing or treating SARS-CoV-2 infection, comprising the peptide; and a composition for detecting SARS-CoV-2, comprising the peptide.”
About this source
USPTO classification C07K covers peptides: short amino-acid chains that form the backbone of antibodies, hormones, vaccines, and increasingly a wider class of therapeutic modalities. Every newly published application in C07K lands in this feed, around 175 a month. Applications publish 18 months after filing, so this feed reveals what antibody engineering groups, vaccine developers, and plant biotech researchers were working on in the prior year and a half. Watch this if you compete in biologics, file freedom-to-operate analyses on antibody drug candidates, scout acquisition targets in vaccine platforms, or track protein-based agricultural biotech filings.
What changed
CAREGEN CO, LTD. filed a published patent application (US20260109734A1) with the USPTO covering a peptide that specifically recognizes SARS-CoV-2 proteins and compositions for preventing, treating, and detecting the virus. The application, filed October 22, 2025 and published April 23, 2026, names six inventors and carries CPC classifications C07K 7/04 and A61P 31/14. This published application does not create direct compliance obligations for third parties; however, entities developing similar therapeutic peptides or diagnostics targeting SARS-CoV-2 should review this publication as potential prior art and consider freedom-to-operate analysis for their own programs.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
PEPTIDE WITH NEUTRALIZING ACTIVITY AGAINST SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS 2
Application US20260109734A1 Kind: A1 Apr 23, 2026
Assignee
CAREGEN CO, LTD.
Inventors
Yong Ji CHUNG, Eun Mi KIM, Eung Ji LEE, Young Min LEE, Han A KANG, Min Kyeong JEONG
Abstract
The present invention relates to a peptide that specifically recognizes a protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or a portion thereof, a composition for preventing or treating SARS-CoV-2 infection, comprising the peptide; and a composition for detecting SARS-CoV-2, comprising the peptide.
CPC Classifications
C07K 7/04 A61P 31/14
Filing Date
2025-10-22
Application No.
19365687
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