Engineering Patent Review describes patents and the patent process. It then, in Case Study I, examines all aspects of a patent assigned to a large U.S. corporation to improve performance of one of its products. It explains how four other patents examined as "e;prior art"e; were used to enhance the credibility of the sought after patent and how the three claims that were made skillfully protect against possible patent infringement. A twenty-two multiple choice question quiz follows. Case Study II teaches both patent application and the important design and operating characteristics of two different types of anti-friction bearings. The patent application involves replacing conventionally used tapered roller bearing with angular contact ball bearings in a mechanical setting. It details important design features of both types of bearings and how it affects their installation and operation. "e;Prior art"e; (patents that are similar to the one being applied for) is examined and a conclusion drawn as to whether the patent application is to be allowed or denied. A twenty multiple choice question quiz follows.