Patents by Inventor Lockhart B. Rogers

Lockhart B. Rogers 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).

  • Gaseous contaminant dosimeter
    Patent number: 4466942
    Abstract: A personal dosimeter for the collection of formaldehyde is improved by modifying the sodium bisulfite absorbant medium with sodium bicarbonate.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: August 21, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Lockhart B. Rogers