Patents by Inventor John B. Mahoney

John B. Mahoney 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).

  • Publication number: 20240110245
    Abstract: The present disclosure relates to detecting one or more types of gynecological cancer in a biological sample from a subject. In particular, the present disclosure provides compositions and methods for detecting the presence or absence of one or more types of gynecological cancer (e.g., cervical cancer, ovarian cancer, endometrial cancer) in a biological sample from a subject having or suspected of having a gynecological cancer.
    Type: Application
    Filed: September 1, 2023
    Publication date: April 4, 2024
    Inventors: William R. Taylor, John B. Kisiel, Douglas W. Mahoney
  • Patent number: 4946964
    Abstract: There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound represented by the formula ##STR1## wherein R is --OH, --OR.sub.4, --NH.sub.2 --NHR.sub.5 or --NR.sub.4 R.sub.6 ; R.sub.1 is hydrogen, --NH.sub.2, alkyl, substituted alkyl, aryl or substituted aryl; R.sub.2 and R.sub.3 each independently is hydrogen, alkyl, aralkyl or aryl; R.sub.4 is a protecting group which can be removed in the presence of a base; R.sub.5 is an activating group which can render the neighboring hydrogen atom acidic; R.sub.6 is an electron withdrawing group which is capable of stabilizing the negative charge on the nitrogen atom which is produced upon removal of R.sub.4 upon contact with alkali; and PHOTO is a photographically useful group.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: August 7, 1990
    Assignee: Polaroid Corporation
    Inventors: Roger A. Boggs, John B. Mahoney, Avinash C. Mehta, William C. Schwarzel, Lloyd D. Taylor
  • Patent number: 4743533
    Abstract: There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound represented by the formula ##STR1## wherein R is --OH, --OR.sub.4, --NH.sub.2 --NHR.sub.5 or --NR.sub.4 R.sub.6 ; R.sub.1 is hydrogen, --NH.sub.2, alkyl, substituted alkyl, aryl or substituted aryl; R.sub.2 and R.sub.3 each independently is hydrogen, alkyl, aralkyl or aryl; R.sub.4 is a protecting group which can be removed in the presence of a base; R.sub.5 is an activating group which can render the neighboring hydrogen atom acidic; R.sub.6 is an electron withdrawing group which is capable of stabilizing the negative charge on the nitrogen atom which is produced upon removal of R.sub.4 upon contact with alkali; and PHOTO is a photographically useful group.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: May 10, 1988
    Assignee: Polaroid Corporation
    Inventors: Roger A. Boggs, John B. Mahoney, Avinash C. Mehta, William C. Schwarzel, Lloyd D. Taylor
  • Patent number: 4163816
    Abstract: Silver diffusion transfer image-receiving elements are formed by hydrolyzing a solution of a hydrolyzable cellulose ester, coating a support with a layer of said hydrolyzed cellulose ester and disposing silver precipitating nuclei therein.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: August 7, 1979
    Assignee: Polaroid Corporation
    Inventors: Robert D. Eckert, Boris Levy, John B. Mahoney