Patents by Inventor Petra Jane Harris

Petra Jane Harris 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).

  • Device for dispensing a plurality of unitary doses of dry powder, and inhaler comprising such device
    Patent number: 8528549
    Abstract: A device for dispensing a plurality of unitary doses of dry powder includes: first and second supports, an indexing mechanism adapted to move the first and second supports, the indexing mechanism and the supports being configured so that in a first dispensing state of the device, the first and second supports are respectively in engagement with and disengaged from the indexing mechanism, in a second dispensing state of the device, the second and first supports are respectively in engagement with and disengaged from the indexing mechanism, and a changeover mechanism for causing the device to pass from the first dispensing state to the second dispensing state, to lock the second support while the device is in the first dispensing state, and to lock the first support while the device is in the second dispensing state.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: September 10, 2013
    Assignee: Pfizer Limited
    Inventors: Louise Annabel Bunch, Petra Jane Harris
  • Device for Dispensing a Plurality of Unitary Doses of Dry Powder, and Inhaler Comprising Such Device
    Publication number: 20110174305
    Abstract: Device for dispensing a plurality of unitary doses of dry powder, comprising: first (25a) and second (25b) supports, an indexing mechanism adapted to move the first and second supports (25), the indexing mechanism and the supports (25a, 25b) being configured so that in a first dispensing state of the device, the first (25a) and second (25b) supports are respectively in engagement with and disengaged from the indexing mechanism, in a second dispensing state of the device, the second (25b) and first (25a) supports are respectively in engagement with and disengaged from the indexing mechanism a changeover mechanism (90) adapted to cause the device to pass from the first dispensing state to the second dispensing state, to lock the second support (25b) while the device is in the first dispensing state, and to lock the first support (25a) while the device is in the second dispensing state.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 21, 2011
    Inventors: Louise Annabel Bunch, Paul George Harris, Petra Jane Harris