A Patent is a right to stop others from copying the invention. The right is provided by the Government of a country where the Patent is to be filed. Now, to get the Patent, one must follow the set Patent process of the country where one wishes to file the Patent.
Let us assume that you have a new idea and you do not want others to copy your idea. So, you will have to file and get a patent for your new idea. The process to file and get a patent is complex and many documents need to be filed with the patent office. Also, the process has a lot of steps and timelines. The patent agent helps the client in moving ahead with the complex process easily. They prepare the patent in a format acceptable to the patent office. This reduces the risk of receiving unnecessary objections.