The chapter is concise. So let us dive right in$.$ It is important to know the different type of patents. In fact, for those of you still yearning for the days of product liability, you will notice a unique connection between the types of product defects and the types of patents. But if you have an idea, it has to be new, unexpected, and useful. After all, the product you have invented has to be an invention you have come up with that will help mankind. By way of example, it is a little late to come with an idea for a chair. While you may be able to patent specific improvements upon the chair, the basic idea for a "chair" $($which was$/$is useful and at one point in the past, "new$)$ cannot be patentable. Well, what about viruses? After all, they are living organisms? Surely it slaps in the face of nature to say you own something that is a living organism $($DNA v$.$ cDNA, for example;