About 2 Trademarks found that are owned by William Craig Willan

Personal protective air curtain generators in the nature of personal air filtering units for personal facial protection and blocking of airborne particulates composed in part of air filters that remove at least 95% of airborne particles, for use in preventing viral infection for medical use

Personal protection equipment, namely, personal protective air curtain generators in the nature of personal air filtering units for personal facial protection and blocking of airborne particulates for preventing infection

Personal protective air curtain generators in the nature of personal air filtering units for personal facial protection and blocking of airborne particulates composed in part of air filters that remove at least 95% of airborne particles, for use in preventing viral infection for medical use