Patent examiners are generally scientists and engineers who do not necessarily hold law degrees but have received legal training in patent law. "A patent examiner is hired based on their technical expertise, their professional qualifications and possibly their industry experience. They then undergo training within the office, and we use competency based training. An examiner will take somewhere between 12 to possibly 18 months to become what is called an acceptance delegate. That means they are assessed to be competent to assess a patent application and make a decision about it qualifying or satisfying all of the legislative provisions." 2009.