1. What is a Divisional Patent Application?

In the realm of intellectual property, a divisional patent application serves as a strategic tool for patent applicants, particularly in Vietnam. It essentially functions as a separate patent application derived from an existing one, known as the parent application.

Here's a breakdown of the key aspects of a divisional patent application:

Purpose:

  • Addressing lack of unity: Divisional applications come into play when the parent application encompasses inventions that are too diverse to be grouped together under one invention. This allows applicants to seek separate patents for each distinct invention.
  • Buying time for patentability arguments: If the parent application faces challenges regarding its patentability, a divisional application can be utilized to buy additional time for presenting further arguments or overcoming objections raised by the Intellectual Property Office of Vietnam (IP Vietnam).

When to File:

  • Flexibility: Unlike some jurisdictions, Vietnam offers flexibility regarding the timing of filing a divisional application. It can be submitted anytime before IP Vietnam issues a final decision on the parent application.
  • Recommended timeframe: The most recommended window for filing falls before IP Vietnam issues a decision on rejection or grant of the parent application.
  • Other possibilities: While less common, divisional applications can also be filed during an appeal process or even after receiving a Notice of Allowance, but with strategic considerations due to potential delays.

Key Requirements:

  • Originality: The core subject matter of the divisional application must be derived from and already disclosed in the original parent application.
  • No new inventions: Introducing new inventive concepts not present in the parent application is strictly prohibited in a divisional application.
  • Distinct claims: To avoid issues of double patenting, the claims in the divisional application must be different from the claims in the parent application.

Overall, understanding the concept of divisional patent applications empowers patent applicants in Vietnam to navigate the patent system effectively. By strategically utilizing this tool, applicants can potentially secure broader protection for their inventions or overcome challenges related to patentability.

 

2. When to File a Divisional Application

While Vietnam offers flexibility in filing divisional applications, choosing the right timing is crucial for maximizing their effectiveness and minimizing potential drawbacks. Here's a breakdown of key considerations:

Recommended Timeframe:

The most recommended time to file a divisional application in Vietnam is before the Intellectual Property Office of Vietnam (IP Vietnam) issues a final decision on the parent application, particularly:

  • Before a rejection decision: If the parent application faces rejection due to lack of unity, filing a divisional application allows you to pursue protection for the distinct inventions separately, potentially increasing your chances of success.
  • Before a grant decision: If the parent application seems likely to be granted but you believe its scope could be broadened, a divisional application can secure protection for specific aspects not covered in the initial application.

Other Possible Timeframes:

  • During an appeal: If the parent application is rejected and you successfully appeal the decision, you can file a divisional application only after the parent application is returned to IP Vietnam for re-examination.
  • After a Notice of Allowance: Technically, filing a divisional application is still possible after receiving a Notice of Allowance. However, this is not recommended as it can introduce delays and potential complications. IP Vietnam doesn't always send out official grant decisions, and delays in filing the divisional application can lead to missing the window before the grant is formally issued.

Important Considerations:

  • Strategic decisions: Carefully assess the benefits (broader protection, overcoming patentability challenges) against the costs and complexity (additional fees, managing two applications) involved when deciding the timing of a divisional application.
  • Consult a professional: Consulting with a patent attorney is highly recommended to navigate the nuances of timing and ensure your divisional application strategy aligns with your overall intellectual property goals.

In summary, while Vietnam offers flexibility, carefully consider the recommended timeframe and potential drawbacks of filing a divisional application at different stages. Consulting a patent attorney can help you make informed decisions based on your specific circumstances and maximize the benefits of this valuable tool.

 

3. Key Requirements for Filing

While divisional patent applications offer strategic advantages in Vietnam, successfully filing one requires fulfilling specific criteria set by the Intellectual Property Office of Vietnam (IP Vietnam). Here's a breakdown of the three key requirements:

1. Derived Subject Matter:

  • The core subject matter of the divisional application must be derived from and already disclosed in the original parent application. This ensures the invention originates from the initial disclosure and avoids claiming entirely new inventions through the divisional application.

2. No New Matter:

  • Introducing new inventive concepts not present in the parent application is strictly prohibited in a divisional application. This restriction prevents applicants from using the divisional application to introduce previously undisclosed inventions and circumvent the novelty requirement for patent protection.

3. Distinct Claims:

  • To prevent issues of double patenting, the claims in the divisional application must be different from the claims in the parent application. This means the divisional application cannot claim the exact same invention already covered by the parent application.

Here's a breakdown of what constitutes "different claims":

  • Scope: The claimed subject matter in the divisional application should not encompass the entirety of the claimed subject matter in the parent application. It can be narrower, focusing on specific aspects of the invention, or broader, claiming additional features not covered in the parent application, as long as these additional features were originally disclosed in the parent application.
  • Wording: While some overlap in terminology might be unavoidable, the claims in the divisional application should be distinctly worded from the claims in the parent application to clearly differentiate the claimed inventions.

Additional Considerations:

  • IP Vietnam may reject the divisional application if it fails to meet any of these three key requirements.
  • Consulting with a patent attorney is crucial to ensure your divisional application adheres to these requirements and effectively achieves your intended purpose.

By understanding and fulfilling these key requirements, applicants can increase their chances of successfully filing a divisional application in Vietnam and leveraging its strategic benefits for their intellectual property portfolio.

 

4. Examination Process

While a divisional application stems from an existing patent application, its journey through the Vietnamese patent system is independent. Here's an overview of the key stages involved in the examination process for divisional applications:

1. Formality Examination:

  • This initial stage focuses on ensuring the divisional application adheres to formal requirements such as:
    • Completeness of the application documents (specification, claims, drawings, etc.).
    • Proper formatting and adherence to official guidelines.
    • Payment of necessary fees.
  • IP Vietnam typically completes this examination within one month from receiving the application.
  • Depending on the outcome, you may receive a Notice of Deficiency highlighting any issues that need correction, or a Notice of Formality Acceptance indicating successful completion of this stage.

2. Substantive Examination:

  • This stage delves deeper into the technical merits of the claimed invention, assessing its:
    • Novelty: Whether the invention is genuinely new and not already disclosed in prior existing inventions.
    • Inventive Step: Whether the invention involves an inventive step that is not obvious to a person skilled in the relevant field.
    • Industrial Applicability: Whether the invention can be produced and used in an industrial manner.
  • The time frame for substantive examination is typically 18 months from the date of publication of the application.
  • Similar to the parent application, you may receive various office actions (communications from IP Vietnam) throughout this stage, raising concerns or requesting clarifications.

3. Addressing Office Actions:

  • During the examination process, IP Vietnam may issue office actions raising concerns or requesting clarifications regarding:
    • The compliance of the claims with the key patentability requirements mentioned above.
    • The distinction of the claimed invention from the invention claimed in the parent application to avoid double patenting.
    • Any other technical or legal issues they identify.
  • It's crucial to respond to office actions promptly and address the raised concerns effectively within the stipulated timeframes. This may involve amending the claims, providing additional arguments or evidence, or engaging in discussions with IP Vietnam.

4. Grant or Rejection:

  • Following the examination process, IP Vietnam issues a final decision on the divisional application, resulting in either:
    • Grant: If the application successfully meets all patentability requirements, a patent is granted for the claimed invention.
    • Rejection: If the application fails to meet any of the patentability requirements, IP Vietnam issues a rejection decision, outlining the specific reasons for denial.

Important Considerations:

  • The examination process for divisional applications is separate and independent from the parent application's examination process.
  • The timeline and procedures involved in the examination process are generally similar to those of a regular patent application in Vietnam.
  • Consulting with a patent attorney is highly recommended to navigate the complexities of the examination process and effectively respond to any office actions, maximizing your chances of obtaining a successful outcome for your divisional application.

By understanding the distinct stages and crucial aspects of the examination process, applicants can gain valuable insights into the journey their divisional application takes in Vietnam and prepare accordingly to ensure a smooth and successful application process.

 

5. Important Considerations

While divisional patent applications offer strategic advantages in Vietnam, it's crucial to carefully consider several important factors before embarking on this path:

1. Costs and Complexity:

  • Filing and prosecuting a divisional application involve additional fees beyond those associated with the parent application, including filing fees, examination fees, and potential back annuities.
  • Managing two separate applications (parent and divisional) can increase the overall complexity involved, requiring additional time, resources, and potential legal expertise.

2. Strategic Benefits vs. Drawbacks:

  • Weigh the potential benefits of a divisional application, such as:
    • Securing broader protection for your invention by focusing on specific aspects not covered in the parent application.
    • Overcoming patentability challenges faced by the parent application by addressing concerns or focusing on distinct aspects.
  • Carefully consider these benefits against the drawbacks mentioned above, such as increased costs and complexity.

3. Double Patenting Concerns:

  • Ensure the divisional application claims distinct subject matter from the claims in the parent application to avoid double patenting. This means the divisional application cannot claim the exact same invention already covered by the parent application.
  • Consulting a patent attorney is crucial to carefully draft claims and ensure your divisional application complies with Vietnam's regulations regarding double patenting.

4. Timing and Deadlines:

  • While Vietnam offers flexibility, filing a divisional application before IP Vietnam issues a final decision on the parent application is generally recommended. This allows you to:
    • Avoid potential delays associated with filing after grant.
    • Strategically utilize the divisional application to address issues or broaden protection.
  • Consult with a patent attorney to understand the specific deadlines and strategic considerations related to the timing of your divisional application filing.

5. Seeking Professional Guidance:

  • The complexities involved in divisional patent applications, particularly regarding claim drafting, navigating the examination process, and avoiding double patenting, highlight the importance of consulting with a qualified patent attorney.
  • A patent attorney can:
    • Advise you on the feasibility and strategic value of filing a divisional application.
    • Guide you through the process, ensuring compliance with all requirements and maximizing your chances of success.
    • Draft claims that effectively achieve your desired protection while avoiding double patenting issues.

By carefully considering these important aspects, applicants can make informed decisions about divisional applications and leverage this tool strategically within their overall intellectual property strategy in Vietnam. Consulting with a patent attorney throughout the process is highly recommended to navigate the complexities and ensure a successful outcome.

 

6. Conclusion

Divisional patent applications offer a valuable tool for patent applicants in Vietnam, enabling them to strategically navigate the patent system and potentially secure broader protection for their inventions or overcome patentability challenges. However, understanding the intricacies involved, including key requirements, examination processes, and important considerations, is crucial for making informed decisions and maximizing the effectiveness of this strategy.

Consulting with a qualified patent attorney throughout the process is highly recommended. Their expertise can guide you through the complexities, ensure compliance with regulations, and help you achieve your desired intellectual property goals in Vietnam. By carefully weighing the benefits and drawbacks, understanding the key aspects, and seeking professional guidance, applicants can successfully utilize divisional applications to enhance their patent protection strategies in Vietnam.

If you need further explanation on this subject, please don't hesitate to contact us through email at lienhe@luatminhkhue.vn or phone at: +84986 386 648. Lawyer To Thi Phuong Dzung.