Patent Numbers (Government patent)
Tuesday, March 11th, 2008Free searchable databases; includes the U.S. Patent Bibliographic Database and the AIDS Patent Database.
The first Patent number was issued in 1836. It was simply (1). When you want to find when an item was made, and you can find the Patent numbers use the largest number you can find. Most items list many Patent numbers. The only one you need to know is the last and largest one listed. There are exceptions to this rule however.

