Like Martin said, there is pretty much nothing you can do to keep others from teaching an exercise or a program without your consent. You can copyright a name or an equipment, but anyone can use the method or a similar equipment as yours and name it something else. You can write a book about it or start charging money to teach your program and idea to other trainers (or create a certification).
For example CrossFit or even a brand name like Orangetheory fitness. The principles and core philosophies behind these two commercialized ideas are not new. I used to be trained like a CrossFit athlete long before the name CrossFit came to the scene. And the philosophy and type of workouts/training Orange Theory is promoting I have been using to train clients long before it become a “philosophy” (which I’m sure the majority of the trainers who have been around for many years have also done). In other words, they are “old” news. I wish I could have thought of trademarking those workouts first with a clever name like their owners did and make a ton of money.