"Cannabinoids are a class of diverse chemical compounds that activate cannabinoid receptors on cells that repress neurotransmitter release in the brain. These receptor proteins include the endocannabinoids (produced naturally in the body by humans and animals),[1] the phytocannabinoids (found in cannabis and some other plants), and synthetic cannabinoids (manufactured chemically)."
The patent is for a very specific cannabanoid. A synthetic one. If you choose to stay ignorant do it on your own time. If you want to learn something... read the patent.