The document discusses utility patents and design patents. A utility patent protects the functional aspects of an invention for up to 20 years, while a design patent protects the ornamental design of an article of manufacture for 10 years. Examples of patented inventions are provided. Utility patents are generally more expensive and take longer to obtain but provide broader protection, while design patents are cheaper and faster to obtain but only protect the design. The document recommends obtaining both types of patents if an invention has a unique structure/function and design.