Patents by Inventor Ernest D. Kolb

Ernest D. Kolb 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).

  • Hydrothermal crystal growth processes
    Patent number: 4579622
    Abstract: High quality crystals of materials that are essentially silicon-free are produced in a low pressure hydrothermal growth process through a specific expedient. In particular, the aqueous solution utilized in the pressure vessel during growth is introduced in significantly larger quantities than previously thought to be acceptable.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: April 1, 1986
    Assignee: AT&T Bell Laboratories
    Inventors: Anthony J. Caporaso, Ernest D. Kolb, Robert A. Laudise
  • Growth of AlPO.sub.4 crystals
    Patent number: 4300979
    Abstract: AlPO.sub.4 crystals are isomorphic with quartz and are expected therefore to have several crystal orientations in which the elastic (piezoelectric) constants are relatively insensitive to temperature. The piezoelectric coupling coefficients of AlPO.sub.4 are approximately three times those of quartz. Hydrothermal growth techniques to date have been marginal, and all have employed H.sub.3 PO.sub.4 as the hydrothermal solution. We describe using HCl as the hydrothermal solution and demonstrate the superiority of HCl from the standpoint of solubility and consequent crystal growth rate.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: November 17, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Ernest D. Kolb, Robert A. Laudise