OOVO products represent embodiments of multiple pending patent applications filed with the United States Patent and Trademark Office:
- US 16/105,174 – Apparatus for Semi-Occluded Vocal Tract Exercises
- US 29680824 – Improved Apparatus for Semi-Occluded Vocal Tract Exercises
- US 62927629 – Apparatus and Method for Performing Semi-Occluded Vocal Tract Exercises
- US 29/711,053 – Vocal Training and Therapy Apparatus
OOVO is a trademark pending registration with the USPTO.
