Is the word Buteyko trademarked?

Is the word Buteyko trademarked?

In Russia, the word Buteyko (both in English and Russian) is a registered trademark (number 379371). The Clinica Buteyko in Moscow and Dr. Buteyko’s family registered the trademark Buteyko in an attempt to preserve the Buteyko Method and protect it from misuse. This was a reaction to the fact that in the West, many people use the terms Buteyko method or Buteyko practitioner or “Buteyko Clinic” without a proper education in the method or without the necessary legal rights. Some Buteyko practitioners are very enthusiastic about the Buteyko method; however, their instructions sometimes oppose the directions given by Dr. Buteyko and could harm people’s breathing and health. Of course, this is not applicable to all Buteyko practitioners, many of whom are skillful and knowledgeable people, but regrettably, it does apply to everyone. We sincerely hope that this situation will change in the future.
In the U.S, the word “Buteyko” is not a trademark; anyone can use it.