A more thorough explanation:

In the context of patents, the summary of the invention is a section in a U.S. patent application that provides a clear and concise description of the nature, operation, and purpose of the invention. The purpose of this section is to help the patent examiner and anyone searching for prior art to understand the unique features of the invention.

For example, if someone invents a new type of smartphone that has a foldable screen, the summary of the invention would describe how the screen works, how it folds, and what benefits it provides to users. This information would help the patent examiner to determine whether the invention is novel and non-obvious, and it would also help other inventors to avoid infringing on the patent.

Another example might be a new type of medical device that uses a unique combination of materials to improve patient outcomes. The summary of the invention would describe how the device works, what materials it uses, and how it differs from existing medical devices. This information would help the patent examiner to determine whether the invention is eligible for a patent, and it would also help doctors and other medical professionals to understand how the device can be used to improve patient care.

Overall, the summary of the invention is an important part of any patent application, as it provides a clear and concise description of the invention's unique features and benefits. By including a well-written summary, inventors can increase their chances of obtaining a patent and protecting their intellectual property.