Patents by Inventor Fred Koermer

Fred Koermer 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).

  • Battery pack having a plurality of battery slots
    Patent number: 6507170
    Abstract: A battery pack includes a case and an adapter contoured to mate with a battery socket of a power-consuming device. The battery socket is formed to receive an intended, standard-sized battery. The battery pack includes positive and negative leads electrically connecting the adapter to the case and two battery slots formed to receive intended, standard-sized batteries in parallel electrical communication with the positive and the negative leads.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: January 14, 2003
    Assignee: Quartex
    Inventors: Terrence J. O'Neill, Fred Koermer
  • Battery pack
    Publication number: 20020036480
    Abstract: A battery pack includes a case and an adapter contoured to mate with a battery socket of a power-consuming device. The battery socket is formed to receive an intended, standard-sized battery. The battery pack includes positive and negative leads electrically connecting the adapter to the case and two battery slots formed to receive intended, standard-sized batteries in parallel electrical communication with the positive and the negative leads.
    Type: Application
    Filed: September 19, 2001
    Publication date: March 28, 2002
    Applicant: Quartex Division of Primex Inc.
    Inventors: Terrence J. O'Neill, Fred Koermer