China Utility Model Patent for Multi-layer Acetate Fiber Glasses | READSUN Optical
China Utility Model Patent for Multi-layer Acetate Fiber Pressed Fabric Glasses
In premium eyewear manufacturing, material innovation is the foundation of product differentiation. We are proud to announce that READSUN Optical has been granted a Utility Model Patent by the State Intellectual Property Office of P.R. China for our advanced Multi-layer Acetate Fiber Pressed Fabric Glasses.
This patent represents a significant breakthrough in material engineering, allowing us to create eyewear with unique visual textures, superior durability, and enhanced structural integrity. It provides our B2B partners with exclusive, high-value products that stand out in the competitive premium eyewear market.
Our current patent is issued under Patent No. 5643285, valid from November 2, 2016 through September 30, 2070. Below, we explore what this means for your brand.
Patent Certification Details
Below is the key information from our Utility Model Patent Certificate:
Patent Number
5643285
Issuing Authority
State Intellectual Property Office of P.R. China
Validity Period
November 2, 2016 – September 30, 2070
Invention Name
Multi-layer acetate fiber pressed fabric glasses
Patent Type
Utility Model Patent (China)
Certificate Category
Product Certificate
This certification protects our proprietary multi-layer acetate pressing technology. Specific technical files and patent drawings are available upon request for our manufacturing partners under an NDA.
What This Patent Means for Your Premium Eyewear Line
For B2B buyers and premium eyewear brands, sourcing from a manufacturer with patented material technology offers significant commercial advantages.
1. Advanced Material Aesthetics and Durability
Our patented multi-layer acetate fiber pressed fabric process allows for intricate color combinations and unique patterns that cannot be achieved through standard injection molding. This creates eyewear with a distinct luxury feel, superior depth of color, and enhanced mechanical strength.
2. Exclusive Design Protection
A utility model patent acts as a legal shield. When you partner with READSUN, you are sourcing a design and material process that is legally protected in China. This effectively prevents competitors from copying your best-selling acetate frames and flooding the market with low-quality imitations.
3. Proven R&D and Engineering Strength
Securing a patent requires rigorous technical scrutiny. This certificate is tangible proof of READSUN's material engineering expertise. It demonstrates our ability to innovate beyond basic manufacturing and deliver proprietary solutions that give your brand a technological edge.
Our Commitment to Quality and Innovation
Innovation is just one part of the equation. Advanced materials must be backed by exceptional manufacturing to succeed in the marketplace. Our factory operations are supported by a rigorous Optical Frame Quality Control system, ensuring every unit meets our high standards for durability, finish, and comfort.
If you are looking to elevate your product line with innovative, patented acetate designs, we invite you to explore our custom eyewear manufacturing capabilities to see how we bring unique concepts to life.
To learn more about our company history, technological expertise, and compliance standards, please visit our About READSUN Optical page.
Frequently Asked Questions
What is Multi-layer Acetate Fiber Pressed Fabric?
This is a specialized manufacturing process where multiple layers of acetate fiber fabric are compressed together under high heat and pressure. This technique creates eyewear frames with unique visual textures, superior color depth, and enhanced structural durability compared to standard acetate sheets.
How long is this patent valid?
READSUN's current patent for this multi-layer acetate technology is officially valid from November 2, 2016 through September 30, 2070, ensuring long-term protection and exclusivity for this specific material innovation.
Can I request the technical drawings for this patented design?
Yes. For serious B2B inquiries and manufacturing partnerships, we can provide technical drawings and patent documentation under a Non-Disclosure Agreement (NDA).
Partner with a Leader in Material Innovation
Bring patented, high-value acetate eyewear to your customers. With READSUN Optical as your manufacturing partner, you gain access to advanced material technology and a robust intellectual property portfolio.
Contact READSUN Optical today to request more details about our Multi-layer Acetate Fiber technology and discuss how we can integrate this innovation into your next product line.
Oct 15,2026

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