This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Ysl & C Limited. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Yuyan Song and Compostable Medical Mask Innovation.
Introduction
Yuyan Song is an inventor associated with Hong Kong, CN, and Ysl & C Limited. Her patent work includes a compostable medical face mask designed to combine filtration performance with compostable materials.
Latest Patents
Song is associated with 1 patent, titled “Compostable Medical Face Mask.” The invention describes a mask with a printable outer non-woven layer, an intermediate filtration layer made with nanoscale fibers, and a soft inner layer that contacts the wearer. The patent specifies bacterial, sub-micron particulate, and viral filtration efficiencies of at least 98%, splash resistance against synthetic blood at 160 mm Hg, and differential pressure below 5.0 mm HO/cm.
Career Highlights
Song’s listed patent highlights an approach to medical-mask design that pairs high filtration and splash-resistance requirements with compostable construction. The described layers use fibers of different diameters to serve distinct roles in the mask.
Collaborations
Song’s listed coworkers include Siu Lung Yu and Sik Chun Johnny Lo. The available information identifies these colleagues but does not specify their individual contributions to the patent.
Conclusion
Yuyan Song’s patent presents a compostable medical-mask design intended to meet demanding filtration and splash-resistance benchmarks while using a layered non-woven structure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile