1
George D Reese, Albert R Rich Jr, Kevin K Brunson: Face mask with enhanced seal and method. Tecnol Medical Products, Baker & Botts L, September 10, 1996: US05553608 (55 worldwide citation)

A face mask is provided that includes a filter body capable of filtering liquids, particles and aerosols of a size appropriate for the mask's intended purposes, while providing excellent breathability and comfort for extended periods of time. The filter body may be formed from multiple layers of fil ...


2
Kevin K Brunson, Frank D Rasberry, Albert R Rich Jr: Disposable face mask with enhanced fluid barrier. Tecnol Medical Products, Baker & Botts L, March 10, 1998: US05724964 (50 worldwide citation)

A disposable face mask that includes a filter body capable of filtering liquids and/or particles of a size appropriate for the mask's intended purposes, while providing excellent breathability and comfort to the wearer for extended periods of time. The filter body is formed from multiple layers of f ...


3
George D Reese, Albert R Rich Jr, Kevin K Brunson: Face mask with enhanced seal and method. Tecnol Medical Products, Baker & Botts L, December 9, 1997: US05694925 (25 worldwide citation)

A face mask is provided that includes a filter body capable of filtering liquids, particles and aerosols of a size appropriate for the mask's intended purposes, while providing excellent breathability and comfort for extended periods of time. The filter body may be formed from multiple layers of fil ...


4
George D Reese, Albert R Rich Jr, Kevin K Brunson: Face mask with enhanced facial seal. Tecnol Medical Products, Baker & Botts L, December 23, 1997: US05699792 (16 worldwide citation)

A face mask is provided that includes a filter body capable of filtering liquids, particles and aerosols of a size appropriate for the mask's intended purposes, while providing excellent breathability and comfort for extended periods of wear. The filter body may be formed from multiple layers of fil ...