how to check if an idea has been patented
There is no EASY way. If your invention is a new can opener, an existing patent for the same idea may never use the words can opener. For example, it may be described in broader terms: container de-sealer or metal wall scissor. The patent offices classification system helps a bit, but not much. Inventors tend not to want to find their invention, so, they type in --can opener-- and look at a few and say they couldn't find it. You have to look for it like you want to find it. try different search terms. when you find one thats close, look at the references cited in that application and look for other patents wherein the close one was cited.Has someone else already done this?
As an inventor, one of your first thoughts when you come up with the Mother of All Ideas is probably, Has someone else already done this? The only way to know for sure if you're the first is through a patent search. The search will tell you if your idea has been patented already and, if so, whether the patent is still in force. Here's how you do it.Attorney Fees / Invention Complexity
The USPTO, IP Watchdog and every patent law firm strongly recommends that inventors hire a patent agent or attorney to prepare the application. IP Watchdog reminds inventors that not only is the process confusing, but a patent is a legal document that uses the language found in the application and patents can only be protected in court, where every word in the document matters. IP Watchdog reports that the median cost of a patent attorney is around $250 an hour, higher in urban areas (Quinn suggests hiring an experienced attorney that works in an area with a low cost of living as a way to control costs, as opposed to hiring an inexperienced attorney). Quinn states that, depending on the complexity of the invention, attorney fees for conducting a search and preparing an application with drawings usually run between $7,000 and $15,000. The more complex an invention, the longer the attorney spends researching related patents, writing up a detailed description and outlining exactly what the patent should protect. Drawings also take longer the more complex the invention is, and USPTO rewrites can be more difficult.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.Turning an Invention Idea into Money - How Do I Conduct a Patent Search for Prior Art?
A patent search is part of your search for prior art (no, not paintings.) Prior art is any body of knowledge that relates to your invention. Prior art would include previous patents, trade journal articles, publications (including data books and catalogs), public discussions, trade shows, or public use or sales anywhere in the world. As discussed previously, the search for prior art helps prove the novel and nonobvious legal conditions that are required for a patent to be granted.