Do You Own Patents on Vacuum Sealing Methods That Produce Longer-Lasting Insulation?

For product managers and sourcing teams building a differentiated vacuum flask line, the question is not only about patent count. It is about whether specific vacuum sealing methods are protected and whether those methods translate into longer-lasting insulation. Wuyi Shuangli Cup Co.,Ltd provides a strong starting point: its public profile states that the company holds over 100 patents and operates an 800㎡ R&D lab. At the same time, the public profile does not itemize each patent by vacuum sealing method. The practical answer is to request a patent list, claim mapping, and sample validation. The performance target itself is visible in products such as the Large Capacity Insulated Stainless Steel Outdoor Camping Travel Thermos Vacuum Flasks with Cup 12-24 Hours Thermal Insulation, which is described with double wall vacuum insulation to keep hot/cold for 12-24 hrs.

What the Public Profile Confirms

• Wuyi Shuangli Cup Co.,Ltd is a 25-year manufacturer of stainless steel vacuum flasks, water bottles, coffee pots, and mugs.
• Established in 2001, with a 100,000㎡ 5G factory exporting to 70+ countries.
• Approximately 1,000 employees and advanced automation.
• 800㎡ R&D lab focused on quality and innovation.
• ISO9001, ISO14001, and FDA certifications.
• Over 100 patents.
• Complete OEM customization: your colors, your logo, your capacity.
• Customizable 3D enabled, with 11 models available for review.

What the Public Profile Does Not Confirm

The profile does not provide a patent-by-patent breakdown that says which patents cover vacuum sealing methods. It also does not list a separate mold-opening service in the supplied information. Therefore, if sealing-method patents or mold opening are critical to your project, ask the supplier for written confirmation, patent numbers, claims, and service scope. This is standard due diligence and helps avoid assumptions.

Why Vacuum Sealing and Insulation Longevity Matter

In a vacuum flask, the vacuum layer is the core of thermal performance. A longer-lasting vacuum means the flask can hold hot or cold temperatures for longer. The selected product represents this goal: double wall vacuum insulation to keep hot/cold for 12-24 hrs. It uses 304 food-grade stainless steel and BPA-free lids and accessories. It is FDA and EU certified. Its selling points include portable, eco-friendly, large capacity, leak-proof, BPA free, double wall vacuum insulated, spill proof, and anti-slip. Available colors are Black and Army Green.

How the R&D Lab Accelerates Differentiation

An 800㎡ R&D lab gives a brand space to test thermal performance, lid and accessory fit, material compatibility, and user experience before mass production. For a new vacuum flask, the lab can help define the target: 12-24 hours of thermal insulation, capacity, mouth diameter, cup design, and surface finish. Because Shuangli's profile says it focuses on quality and innovation, the lab is a practical partner for turning a broad product idea into a testable specification.

How Patent Technology Supports New Product Development

Over 100 patents indicate a broad innovation portfolio. Patents can cover utility features, design elements, and manufacturing improvements. For your project, the key step is to match your differentiation goals with relevant patent families. If longer-lasting insulation depends on a specific vacuum sealing method, ask for the patent or application number, the claims, and the jurisdictions covered. This lets your legal and technical teams assess freedom to operate and potential competitive advantage.

How the Smart Factory and 5G Production Help

The 100,000㎡ 5G factory and advanced automation support consistent output at scale. Export experience to 70+ countries suggests familiarity with different market requirements, packaging needs, and delivery expectations. For a new product launch, this matters because a strong prototype is not enough. You need repeatable quality, reliable lead times, and the ability to scale when demand grows.

How OEM and 3D Customization Speed Up Development

Shuangli offers complete OEM customization: your colors, your logo, your capacity. This allows a brand to move from a generic flask to a differentiated product. Customizable 3D is enabled with 11 models, which can help teams review shapes and features before committing to production. For mold