4. Apparel
  5. Head coverings
  6. Face coverings

John W. Bryant

Inventor

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Audible messaging device for encouraging a patron to employ...

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Design Patent

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Elastomeric composite headband

Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent

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Face mask that has a filtered exhalation valve

Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Reexamination Certificate

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Face mask that has a filtered exhalation valve

Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Reexamination Certificate

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Flat-folded personal respiratory protection devices and processe

Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Patent

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Profile ID: LFUS-PAI-P-260545

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