US Patent Numbers
US Patent numbers were issued since 1836. The very first issued was simply the number 1. In some European countries particularly in England and Italy, patents have been granted since the 1600s. The United States began granting patents in 1790. The first Patent Act came out and was signed into effect by George Washington on April 10, 1790. Three and a half months later, on July 31, 1790, the first U.S. patent for a Method of Making Pot Ash Useful in Soap Production was issued to Samuel Hopkins of Philadelphia. But it was only in 1836 that US patent numbers appear. Obviously, US Patent Number 1 was not issued to the very first invention. The first US patent numbers was issued to Senator John Ruggles as the inventor of a locomotive steam engine. By 1871, over 100,000 US Patent numbers had been issued.
The US Patent Full Text Database includes all US patent numbers issued since 1790. The database is structured in two segments, 1976-present and 1790-1975, that must be searched separately.
* Patent from January 1976-present , including all bibliographic data: inventor's name, patent's title, assignee's name, abstract, full description of the invention and the claims
* Because the 1790- December 1975 patents can only be searched on the US patent numbers and/or current U.S. patent classification, you must either know particular patents to search, or identify patent classification numbers to search.
Searching by US Patent Numbers
The US Patent Numbers Search Page allows you to search for patents from 1976-present by their number.
To use the US patent numbers search page:
* Type the US patent numbers or number into the box. If you include more than one number, they should be separated by a space. It is not necessary to include commas or to capitalize the prefix.
* Anything you enter into the US patent numbers search box that is not a patent number (other terms, operators like 'OR' or 'AND') will be ignored. The search will be conducted only on entries you make that are recognized as US patent numbers.
* Click the Search button. The database will be searched for all the US patent numbers you provide, and a list of the documents matching your query will be returned, with the most recent ones first.
The U.S. issues US patent numbers only for granted patents. When you see US patent numbers then it is for granted patents.