Patent information from the Internet The expanding use of the Internet as a vehicle for information retrieval has included the establishment of a large number of websites that pertain to the ‹eld of patents. Many of these offer pertinent and relevant information. Others are merely advertising for products or services connected to the patent ‹eld. As mentioned in a previous chapter, the search engines provided and used by the various Internet Service Providers (e.g., Google®, Yahoo!®) will search the websites in different ways. If one enters the phrase patent searching, the results of a speci‹c search may be completely different.