Since his death, Jeet Kune Do is argued to have split into different groups. Allegedly they are :
The Original (or Jun Fan) JKD branch, whose proponents include Taky Kimura, Yap Mat, James Lee, Jerry Poteet, and Ted Wong; these groups claim to teach what was believed to be only what was taught by Bruce Lee, and encourage the student to further develop his or her abilities through those teachings.
The inherent training principles of this branch are shaped by the static concept of what was "originally taught", just as the training systems of "traditional" martial arts have been taught for centuries and become recognizable as "styles", except it is referred to as a philosophy of "style without style".
The JKD Concepts branch, whose proponents include Dan Inosanto, Richard Bustillo, Larry Hartsell; these groups strive to continue the philosophy of individual self-expression through re-interpretation of combat systems through the lens of Jeet Kune Do.
Under the concept that it was never meant to be a static art but rather an ongoing evolution, and have incorporated elements from many other martial arts into the main fold of its teachings (most notably, grappling and Kali / Escrima material) based on the individual's personal preferences and physical attributes.
The entire JKD "system" can be described through a simple diagram, and the concepts can then be applied to a variety of contexts in a "universal" way.
To understand the branches of JKD it is important to understand the difference between the two "types" or viewpoints of Jeet Kune Do:
JKD framework This type of JKD provides the guiding principles. Bruce Lee experimented with many styles and techniques to reach these conclusions.
To Lee these principles were truisms.
The JKD framework is not bound or confined by any styles or systems. This type of JKD is a process.
JKD Personal Systems This type of JKD utilizes the JKD framework along with any techniques from any other style or system to construct a "personal system".
This approach utilizes a "building blocks" manner in which to construct a personalized system that is especially tailored to an individual.
Lee believed that only an individual could determine for themselves what the usefulness of any technique should be. This type of JKD is thus a product.
