Patents by Inventor Joseph L. Doll

Joseph L. Doll 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).

  • Autoloader and skin testing system
    Patent number: 6206838
    Abstract: There is provided an autoloader apparatus and skin testing system for rapidly loading a multi-headed applicator used for epicutaneous application of biological testing agents, while at the same time, effectively inhibiting cross contamination of testing agents during loading and removal of the applicator. The autoloader apparatus includes a plurality of reservoirs for storing testing agents therein. Each reservoir includes a collar defining an open top. The autoloader apparatus further includes a receptacle having first and second surfaces defining a plurality of apertures therethrough for at least partially receiving the collars of the reservoirs. The skin testing system includes an applicator and an autoloader. The applicator has a plurality of picks for sealably engaging the open tops of the reservoirs of the autoloader to enable each pick to be loaded with an effective amount of testing agent.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 27, 2001
    Assignee: Greer Laboratories, Inc.
    Inventors: Joseph L. Doll, Ralph E. Reese, William White, Jr.
  • Autoloader and skin testing system
    Patent number: 6095988
    Abstract: There is provided an autoloader apparatus and skin testing system for rapidly loading a multi-headed applicator used for epicutaneous application of biological testing agents, while at the same time, effectively inhibiting cross contamination of testing agents during loading and removal of the applicator. The autoloader apparatus includes a plurality of reservoirs for storing testing agents therein. Each reservoir includes a collar defining an open top. The autoloader apparatus further includes a receptacle having first and second surfaces defining a plurality of apertures therethrough for at least partially receiving the collars of the reservoirs. The skin testing system includes an applicator and an autoloader. The applicator has a plurality of picks for sealably engaging the open tops of the reservoirs of the autoloader to enable each pick to be loaded with an effective amount of testing agent.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: August 1, 2000
    Assignee: Greer Laboratories, Inc.
    Inventors: Joseph L. Doll, Ralph E. Reese, William White, Jr.