Taking advantage of differences in patent application and disclosure systems in different countries on a global scale to extend product time to market requires a comprehensive use of patent strategies, international legal frameworks, and market layout synergy. The following are specific methods and precautions： --- ###**1. Phased application strategy** 1. **Priority window period (12 months under the Paris Convention)** -First submit the first application in countries with slow review or strong confidentiality (such as China and Japan), and use the 12-month priority period to spread out in other countries to delay the global disclosure time. -**Key points**: The claims can be optimized during the priority period, and subsequent applications will be submitted in a revised version to avoid premature exposure of core technologies. 2. **PCT international application delay tactics** -Delay in entering countries with high examination standards (such as Europe and the United States) through the PCT route (30/31 months to enter the national stage). For example： -After the international phase of the PCT (18 months of disclosure), choose to enter the European, American and other markets only after the deadline (such as the 28th month) to extend the overall review cycle. -**Advantages**: The PCT international search report can evaluate patentability and adjust the layout of the national stage. --- ###**2. Take advantage of differences in national systems** 1. **Review delay strategy** -**Choose a slow examination country**: Apply early in Brazil, India and other countries with long examination cycles (usually 3-5 years) to delay patent authorization time and delay the imitation of competitors. -**Actively request for delay in examination**: In countries that allow delay in examination (such as Canada and South Korea), you can apply for postponement of substantive examination (up to 5 years) to keep the patent application pending. 2. **Division application and renewal system** -**U.S. Renewal (Continuation)**: Continuously expand the scope of protection through the filing of renewal cases, maintain the “pending” status of the patent family, and extend the actual protection period. - **European division application**: Division after objection or authorization, use the division procedure to extend legal uncertainty. 3. **Utility model and invention patent portfolio** -Apply for utility models (authorized in 6-12 months) and inventions (reviewed in 3-5 years) simultaneously in China, Germany and other countries, use utility models for rapid protection, and continue to be protected after the invention is authorized. --- ###**3. Disclosure control and confidentiality mechanism** 1. **Non-public application channels** -Submit a temporary application (Provisional Application) in the United States and convert it to a formal application within 12 months, during which the technology may not be disclosed. -Apply in countries that allow confidential review (such as some areas of South Korea) and delay the disclosure time. 2. **Disclosure of technical information** -Separate the core technology and peripheral technology applications, give priority to the disclosure of secondary patents, and delay the disclosure of core patents through renewal or phased filing. --- ###**4. Market and legal coordination** 1. **Patent layout matches the rhythm of the market** -Authorization in stages in the target market: For example, first accelerate the review in countries with high risk of generic drugs (such as India), and delay authorization in Europe and the United States to match the product life cycle. 2. **Patent term compensation** -Use patent term adjustment (PTA) or supplementary protection certificate (SPC) in the United States, Japan, Europe and other countries to compensate for the period lost due to the delay in examination. --- ###**5. Risk and compliance precautions** 1. **Novelty risk** -Avoid the loss of novelty due to disclosure outside the priority period (for example, the “grace period” in the United States is only 1 year, and there is no grace period in Europe). -In countries with absolute novelty (such as Europe), any publication (including academic papers) may destroy patentability. 2. **Strategy transparency** -Excessive use of delays may lead to challenges from the Patent Office (such as U.S. restrictions on renewal abuse) or invalid challenges from competitors. 3. **Cost trade-off** -Multi-country phased applications require high fees, and market value and cost need to be assessed (for example, the cost of a single country in the PCT national phase is about 50-15,000 US dollars). --- ###**6. Case reference** -**Pharmaceutical industry**: Delay entering the national stage through the PCT, and cooperate with the data exclusivity period of various countries (such as 5 years + patent period compensation in the United States) to maximize market exclusivity. -**Technology company**: After submitting a temporary application in the United States, it will enter Europe through the PCT within 12 months and use the European Supplementary Protection Certificate (SPC) to extend the protection. --- ###**Summary** The core lies in **Flexible use of the time difference between national systems**, combining technology segmentation, review delay and renewal strategies, but it is necessary to balance legal risks and commercial goals. It is recommended to cooperate with local patent lawyers to customize the layout.