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Patent Protection And The PCT Process

May 20, 2025 General

When an invention has the potential to reach beyond national borders, patent protection must expand with it. For inventors and businesses interested in securing rights in multiple countries, international patent filings are often the next logical step. This is where the Patent Cooperation Treaty (PCT) comes into play. While it doesn’t grant a worldwide patent, it does create a unified procedure for filing in multiple jurisdictions, which can save time and provide more strategic options.

What The PCT Process Does

The Patent Cooperation Treaty is an international agreement that allows inventors to file a single “international” patent application, which can later be used to pursue patent protection in over 150 countries. Rather than filing separate applications in each country at the outset, the PCT streamlines the process into two major phases: the international phase and the national phase.

In the international phase, the applicant submits a single application to a receiving office, typically their home country’s patent office. This application is then subject to an international search to assess whether the invention appears to be novel and patentable. The results, shared in the form of an International Search Report (ISR), offer valuable insight before entering the national phase in selected countries. An attorney can help from the start of the process so that you understand where your application stands.

Why Timing Matters

The PCT process gives applicants a longer timeframe — up to 30 or 31 months from the earliest priority date — to decide in which countries they want to pursue protection. This delay can be critical for assessing market interest, investor support, or the commercial success of the invention before investing further in filing fees and translation costs for individual countries.

This flexibility also gives businesses time to conduct market research, test prototypes, or negotiate licensing deals without rushing into expensive filings. However, once the national phase begins, each chosen country’s patent office will independently review the application according to their laws and regulations.

Challenges With Enforcement And Strategy

While the PCT process provides a structured filing path, enforcement of rights remains country-specific. Having a patent pending in multiple jurisdictions is useful, but applicants must be prepared to follow through with prosecution and possibly enforcement in each selected country. It’s important to consider where real commercial interest lies and focus resources accordingly.

Patent applicants should also be aware that certain countries may have requirements beyond those covered in the international phase. For example, language translations, local representation, and specific formalities may be required. Working with legal counsel who understands these steps can help avoid procedural delays or rejections. Even if your application is accepted in the US, this does not mean it will be accepted elsewhere.

The Value Of Early Legal Planning

Attorneys like those at COFFYLAW can attest to the importance of mapping out an international patent strategy early in the process. Filing decisions, ownership considerations, and enforcement risks can all influence the long-term value of a patent portfolio. Legal counsel familiar with intellectual property law across jurisdictions can provide guidance that aligns legal protection with business goals.

The PCT process is not a shortcut to global patents, but it is an effective legal framework for expanding patent rights internationally. Companies seeking to develop long-term strategies around invention protection should view the PCT as a planning tool rather than a one-size-fits-all solution.

If you’re working with an intellectual property lawyer, especially in industries where international filings are common, it’s wise to include the PCT option in early conversations. International filing may not be right for every invention, but when used strategically, it can provide a solid foundation for global growth. If you are ready to start the application process, contact an attorney near you to get started.