A broad claim is a patent claim which discloses an invention with few limitations. Such claims provide greater protection to an applicant as they exclude the right to produce a greater scope of products. Imagine a broad patent claiming all tables, and the resulting commercial success if you could exclude everyone in the world from making any kind of a table. A narrower claim would add limitations such as: a square table with four legs. Obviously the broad claim has been limited. As you add elements to your claim the narrower the claim becomes.
