Products are individual goods, services, investments, etc.-- basically anything that is offered for money or trade. An object is a Product while it is in storage to be sold at some later point, while it is for sale, and throughout any after-purchase warranty or service period. After that, the object is no longer thought of as a Product, unless it is placed on sale again. An instance of ServiceProduct is an event that is paid for or for which payment was intended/expected.

Examples of Product include a Lexus sedan in the showroom, a package of French fries being handed over the counter at a fast-food restaurant, a commercial massage, a bouquet of flowers in the window of a florist shop, a share in a money market fund, and the services of a real estate agent. The French fries being handed around the back seat of a car, the flowers being given to a sweetheart, or a free massage are not Products.

Cyc can also treat "product" as a relationship between one of the intended outputs of an event and the event itself. For unintended outputs, Cyc uses a different relationship, called "byProducts". Cyc leverages its knowledge of products with its knowledge of types of products. Cyc groups products by type -- i.e. a kind of substance, object, or action -- that is produced (or performed) and is sold as a product. Examples of product types include gift certificate, hard disk drive, plastic wrap, and service event. Non-examples include bread, since not all bread is produced to be sold (think "home-made"); but the kind of bread which is created to be a product is a product type. Product types aren't defined to be either stuff or objects because some product types can be stuff (condsider ketchup), and some product types can be objects. Note that not every conceivable kind of product constitutes a product type; only those kinds that correspond (in some broad sense) to categories under which products are produced, bought, or sold should be product types. Product types that are specific to a single brand name and product versions are even more specialized kinds of product types.

Physical Devices are artifacts with relatively rigid, set shape, designed for a specific use or to perform a specific function. Kinds of physical devices thus include (among others) road vehicles, motorboats, hand tools, and plumbing fixtures. Note that artifacts which are only to be viewed or can only be "used" in a very loose or metaphorical sense, such as a buoy, a sculpture, a flower bed, or a billboard, are not considered to be physical Devices. Moreover, artifacts which have a specific use or function, but which do not have a relatively rigid, set shape are not physical devices; for this reason, neither gasoline nor anti-freeze are kinds of physical devices."