Filing is the inexpensive part. How much do you want reviewed by experts? Are you up-to-date on the latest approaches and case law in the subject? Should your

Filing is the inexpensive part. How much do you want reviewed by experts? Are you up-to-date on the latest approaches and case law in the subject? Should your invention be patent the software, or the software running on the hardware. Are your claims drafted against users, vendors, installers, competitors or some combination of the above? How well have you supported your claims? Have you made a range of claims of decreasing scope so that you end up with the broadest coverage you can get for your invention? All of these can be hard challenges best left to experts, and plenty of people have made big mistakes here like writing an important software patent that could only be enforced against customers (for a B2C product).