Patents by Inventor Lizzette L. Sheffield

Lizzette L. Sheffield has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Respirator
    Publication number: 20100224199
    Abstract: A respirator adapted to facilitate ease of donning and comfort during use comprising one or more of an adjustable or elastic strap that facilitates ease of donning and comfort during wear; and/or fasteners that are easy to use and that facilitate ease of donning and comfort during wear; and/or respirator shapes that facilitate the wearing of eyeglasses with said respirator; and/or bellows-type, pneumatic, or other such components, associated with said respirator, that are adapted to promote adjustability of the fit of the respirator.
    Type: Application
    Filed: December 14, 2006
    Publication date: September 9, 2010
    Inventors: Megan C.H. Smith, Kiran K. Reddy, Herb F. Velazquez, Debra N. Welchel, Theresa M. McCoy, Joseph Mitchell, Matrice B. Jackson, Damon R. Larkin, Lizzette L. Sheffield, Ruthlyn Reyes, Russell J. Kroll, Philip D. Palermo, Suzuko Hisata