What is reissue?
Patent law states "On taking up an application for examination or a patent in a reexamination proceeding, the examiner shall make a thorough study thereof and shall make a thorough investigation of the available prior art relating to the subject matter of the claimed invention." This means that prior art could disqualify your application for a patent.How do I know if my idea is patentable?
First, check to see if your idea qualifies. Second, learn the basics of the patenting process. Next, do a search for of all previous public disclosures that concern your invention. These public disclosures are called prior art. A registered patent attorney or agent can be hired to do a patentability search for prior art, and a big part of that is searching for U.S. and foreign patents that compete with your invention. After an application is filed, the USPTO will conduct their own patentability search as part of the official examination process.How 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 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 inventionThe 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.