Typical Filing Fees for an Independent Inventor
$625 - $825 for the filing fee with no more than 3 claims, which is non-refundable whether or not a patent is granted. This is the fee to have your application "examined" by the USPTO and your patent application may be rejected.The Joys of Conducting a Patent Search
A patent search involves searching different databases to see if your idea has already been patented, to know if you can patent your idea. The results of a good patent search should reveal any identical, similar, or partially similar inventions to the one you might patent. As a bonus, viewing and reading already issued patents will: help you to write your patent application, help you understand your competition, help you avoid patent infringement, help you learn more about your field of inventionHow much money do I need for patenting?
The amount of money you need for patenting will vary depending on the type of patent application you submit. Fees may also vary according to the way you claim your ideas.The Patent Classification System
Patents are organized by class and subclass of invention , similar to the way books are organized in a library). By using the classification system , you can find and examine patents that are in the same field (class) as your idea. The tutorial How to Conduct a Patent Search will introduce you to this form of searching, however, this is difficult material to master.USPTO Fees
The USPTO charges fees at every step of the patent process and these fees are the only fixed cost in the process. The USPTO charges a required $330 to file an application, $540 for a search, $220 for an examination, $1,510 to issue the patent if it passes the examination, plus $7,750 in maintenance fees over the 20 years that the patent is in force. Hence, the total to file and go through the process is $1,090, but the total to receive the patent and keep it in force is $10,350. Note that independent inventors and small businesses receive a 50 percent discount on fees but that the USPTO charges more for extra or late paperwork.