Mistakes can be costly to have fixed, and the damage may be irreversible. Some mistakes can even end up rendering a patent application invalid and an inventor could lose some or all rights to their own invention. So it is usually a good idea to hire a registered patent attorney to help file a patent application, rather than trying to do it yourself. Patent attorneys charge different rates, depending on a number of factors, including how complicated the invention is, their experience, their geographic location, and even the size of their law firm. Call a few attorneys to get a good idea of what some of the charges might be. And don't forget that the US Patent Office charges fees in addition to the attorney fees. Many law firms, including my own, will offer a flat fee arrangement, so that you know the total cost up front.
Answered on Jul 12th, 2011 at 12:15 PM