Inventor (Role Variant)

Inventor Rational is one of the 16 role variants the Keirsey Temperament Sorter is based on. David Keirsey originally described the Inventor role variant; however, the personality descriptions of Isabel Myers greatly contributed to its development. Inventors correlate primarily with ENTP Myers-Briggs type and secondarily with the INTP Myers-Briggs type.

Overview
Inventors are introspective, pragmatic, informative, and expressive. They can become highly skilled in functional engineering and invention. Of all the role variants, Inventors are the most resistant to do things a certain way just because that was the way it was done in the past. Inventors are intensely curious, are always looking for new projects to work on and have an entrepreneurial character. Designing and improving mechanisms and products is a constant goal of Inventors.

Inventors are filled with many ideas but they are primarily interested with ideas that can be used to make products or actions. They see product design as a means to an end, the goal being a marketable prototype. When beginning a project, they rarely start with a blueprint. Rather they are confident in their ability to find effective and pragmatic solutions during the design process.

Inventors are often nonconformists and usually have friends that are interested in their ideas or activities. They are usually laid back, nonjudgmental, and good conversationalists. Inventors are usually informative in their social exchanges and are often able to explain their own complicated ideas as well as comprehend the complex ideas of others. In arguments they may use debating skills, often to the significant disadvantage of their opponent.

Inventors are usually ingenious individuals who are capable of rising to meet the demands of challenging situations. In work, they are usually good leaders of pilot products that test their abilities. Inventors are constantly looking for new ways to do things and usually have the social skills and drive to implement their ideas.

Distinguished inventors
The following individuals are identified as Inventors:
 * Nikola Tesla
 * Walt Disney
 * Thomas Edison
 * Richard Feynman
 * Buckminster Fuller
 * Benjamin Franklin
 * Mark Twain