Patents by Inventor John Moreland

John Moreland 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).

  • Micromachined alkali-atom vapor cells and method of fabrication
    Publication number: 20050007118
    Abstract: A method of fabricating compact alkali vapor filled cells that have volumes of 1 cm3 or less that are useful in atomic frequency reference devices such as atomic clocks. According to one embodiment the alkali vapor filled cells are formed by sealing the ends of small hollow glass fibers. According to another embodiment the alkali vapor filled cells are formed by anodic bonding of glass plates to silicon wafers to seal the openings of holes formed in the silicon wafers. The anodic bonding method of fabricating the alkali vapor filled cells enables the production of semi-monolithic integrated physics packages of various designs.
    Type: Application
    Filed: April 8, 2004
    Publication date: January 13, 2005
    Inventors: John Kitching, Leo Hollberg, Li-Anne Liew, Svenja Knappe, John Moreland, Volodja Velichanski, Hugh Robinson