Technical Problem: Uneven Mold Pressure

In the footwear manufacturing industry, traditional molds commonly use a simple hinge mechanism, which leads to:

• Uneven pressure distribution
• Excessive pressure near the hinge
• Insufficient pressure at distant areas

Consequences:

• Defective shoe soles (deformation, tearing, non-uniform quality)
• Increased defect rate
• Higher production costs

Patent Solution: Rotational–Translational Hinge Mechanism

The invention introduces a key technical improvement:

Adding translational movement to the hinge mechanism

Specifically:

• The upper mold does not merely rotate but also performs a slight translational movement before pressing
• Combined with spring elements and an automatic locking mechanism
• Ensures precise alignment prior to applying pressure

Result:
Uniform pressure distribution across the entire mold surface

Legal Analysis under Patent Law

To be granted a patent in Vietnam, a technical solution must satisfy three key criteria:

1. Novelty

The invention must not be disclosed in any prior art.

In this case:
The combination of rotational–translational hinge with springs and locking system constitutes a novel feature compared to conventional molds.

2. Inventive Step

The invention must not be obvious to a person skilled in the art.

Inventive aspect:

• Not merely a structural modification
• But a dual-motion mechanism (rotation + translation) directly addressing uneven pressure

3. Industrial Applicability

The invention:

• Can be manufactured using conventional mechanical techniques
• Easily implemented in existing production lines
• Can be retrofitted to existing molds

Results After Patent Filing

After preparing and filing the application through A Dong IP, the invention has:

Passed formality examination
Met substantive examination requirements
Demonstrated strong potential for patent grant

From a commercial perspective:

• Significant reduction in defect rate
• Increased mold lifespan
• Optimized production costs

Key Takeaways for Businesses

1. Solve a real technical problem

Even small improvements can be patentable if they address real industry issues.

2. Identify the core inventive feature

Claims should focus on the true technical distinction.

3. Draft a clear and well-structured specification

A strong specification increases the likelihood of patent grant.

Patent Registration Services at A Dong IP

A Dong IP is an authorized industrial property representative in Vietnam, established in 2007, providing:

• Patentability assessment
• Prior art search
• Patent drafting and claim preparation
• Filing and prosecution before the IP Office of Vietnam
• Office action response and legal support

A DONG IP – TRANSLATION – CONSULTANCY COMPANY

Room F2&F3, No. 2 Phung Khac Khoan Street, Sai Gon Ward, Ho Chi Minh City, Viet Nam

Tel: 84-28 3926 0120 – 39260125

Email: consultant@a-dong.com.vn; info@a-dong.com.vn

Website: a-dong.com.vn