When considering whether to patent an idea for a product, you should ask the following questions:
There will also be maintenance fees, and possibly, costs of filing for additional patents, as improvements and expanded markets are identified. You will also need to consider the costs of hiring an attorney to help you with the complicated patent filing process. The costs of marketing and producing the product will vary depending on the product, and the degree to which you rely on professional services, such as marketing firms and manufacturing companies.
Although a patent theoretically protects you from such infringement, pursuing litigation against an infringer can be costly. Also, some inventions with a brief market life or a small market niche may not be worth patenting if you think you can enter the market before others have time to react and imitate your product.