What can be patented?
Inventing successful products is a tough business. If there is an obvious reason that your idea will not be a success in the marketplace you want to find out as quickly and as inexpensively as you can. An invention patent search is one of the most effective ways of doing this. I have gone through dozens or more of what I thought were great original ideas. It turned out that I was completely wrong. Most of the time I found this out during the search process. The best way to approach searching for patents similar to your concept is to do patent research yourselfUtility patents
Utility patents are for either a: process, machine, article of manufacture, composition of matter or an improvement of any of the above. Patent protection is also available for (1) ornamental design of an article of manufacture (design patent) or (2) asexually reproduced plant varieties by design and plant patents (plant patent).The Poor Man's Patent is a Myth
One of the undying myths of Patent World is that there is such a thing as a Poor Man's Patent. If you've never heard of it, the poor man's patent involves writing out a description of your invention and mailing that description to yourself. The transmission of this description through the mail and the cancelling of the postage by the Post Office is supposed to establish a date of invention for you. That way if someone steals your invention or comes along and invents it independently, you have "proof" that you invented it first. The proof is in the sealed envelop and the date the postage was cancelled.What cannot be patented?
Laws of nature, Physical phenomena, Abstract ideas, Inventions which are considered not useful or possible by the USPTO for example perpetual motion machines; or offensive to public morality.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.