Businesses and researchers know patents are ‘strong’ intellectual property rights (IPR). An inventor gains monopoly rights in the patented technology. Once you patent a technology, you can stop others from using it for a certain period. As most people want patents for their invention, the procedure is complex and costly. But not everyone has the resources to patent an invention. And, not everyone likes the monopoly rights of an invention. Some might want to prevent others from getting a patent. Yet, some others might want to disclose a patent-worthy idea for the public good. A practical option for such strategies is defensive publications. This article discusses what defensive publications, some examples, and their modes are.