Choosing the right patent strategy for AI innovations can be difficult and depends on several factors, such as business goals, the market landscape, budget, and timeline of the startup. Common patent strategies include filing a provisional patent application first and converting it to a non-provisional patent application within a year, filing a PCT (Patent Cooperation Treaty) application to seek patent protection in multiple countries with one application, filing a patent family which consists of related patent applications that share a common priority date and disclose the same invention, and filing a defensive publication which is a public disclosure of the invention that prevents others from patenting it. Filing a provisional patent application can help save costs, secure an early filing date, and buy more time to refine the invention or test the market. A PCT application can reduce complexity, increase flexibility, and extend the deadline for entering national phases. A patent family can protect different aspects, versions or improvements of the invention, and create a stronger patent portfolio. Lastly, filing a defensive publication can deter competitors, avoid litigation, and preserve freedom to operate.