Us patent search by number

We Help Inventors Turn Ideas Into Success. Return patents with the inventor name: First name, last name, or both: Original Assignee: Return patents with the original assignee name: First name, last name, or both: Current U. If you wish to continue with a paid membership, please select a membership plan before the year end expiration date. Otherwise, all portfolios and watches will be reset to our free membership plan after the expiration date.

USPTO website by issue date, patent number , or classification code. How do you check for patent? How can you look up a patent number? Is there way to search U. Agency Details Website: U. Contact: Contact the U. A “patent application number search” is similar to a patent number search except you are searching for a published patent applications (many patent applications are not published and cannot be searched).

The first four numbers of the publication number represent the year the patent application was published. Private trademark search firms will conduct searches for a fee. The USPTO cannot aid in the selection of a search firm or an attorney.

Patent Application Number Search. Additional fields are available via our API for commercial use. Gather the information you have about the patent you want to research.

Enter your term in the Query blank. Define the fields of your search. United States patents to search through). A FREE patent search tool Download U. To download a copy of a patent from the U. Espacenet : free access to millions of patent documents. Find out if your invention is unique or if other inventors have filed patent applications that are considered to be prior art.

Trying to figure out the year in which a patent number was granted? To search for land patents: Start by selecting the State. This handy chart from the U. You do not have to fill in all fields, but provide at least one additional field.

Search Tips: Hover your mouse over a field to get a brief description. Get detailed information by checking the Glossary in the Reference Center. From this page, the user can access the complete electronic record for all U. Madrid Protocol applications filed through the USPTO and corresponding International Registrations by entering a U. Reference Number , or International Registration Number , as appropriate. The region is excited by electron cyclotron resonance heating to thereby increase its charged particle density. A patent number is an identifier assigned by a patent office and is used often in a patent search.

The format depends on the issuing office, the type of patent , and when the patent was issued. To do this type of search you will first need to know the patent number. You can usually find this on a commercial product or its packaging. Utility patents have numbers that are in the millions. If you experience technical difficulties or problems with this application,.

If you have found a number (for example in an article or magazine) but you do not know what it represents (application, publication, priority or NPL reference number, for example) or which country it comes from, you can use the Smart search option to find the relevant document. You do not need to know the exact format of the number – fuzzy logic takes care of that – and you can enter it with or without a country code. Classification search is a powerful tool for you if you need to retrieve patent publications in a particular technical area. The legal status is an assumption and is not a legal conclusion. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).

Expert staff provide assistance in the search rooms of the DPMA in Munich and Berlin. There, all services offered by the DPMA are available to you.