When individuals need representation in obtaining a patent, they should consult patent attorneys. Patent attorneys can file oppositions relating to patent law and practice. There may be issues that are particular to the state your live in; therefore consulting a patent attorney in your state would be a point that should be considered. Patent attorneys must pass a ﾑpatent bar' exam in order to be registered as a patent attorney. Obviously, the role of the patent attorney is extremely important when the question of the use of a patent comes into play. If someone suspects that their work is being jeopardized by another, they should contact a patent attorney for advice. When looking for a patent attorney, be sure to research information about the firm they represent the competence of the attorney and billing terms and fees charged.