Patents by Inventor Parthasarathy S. Raghavan

Parthasarathy S. Raghavan 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).

  • Crystal growth apparatus with ceramic coating and methods for preventing molten material breach in a crystal growth apparatus
    Patent number: 9611565
    Abstract: A method for preventing molten material breach in a crystal growth apparatus includes providing a chamber of the crystal growth apparatus which is coated with a ceramic material. The chamber can be coated on an interior surface to prevent damage to the chamber itself, which is made of steel, and to prevent steam explosions in the water-cooled chamber. Ceramic blanket layers also can be provided over the coated interior surface of the chamber. As a result, it is possible to produce high quality crystalline products while minimizing the hazards and costs in the event of a spill of molten material.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 4, 2017
    Assignee: GTAT Corporation
    Inventors: Bhuvaragasamy G. Ravi, Parthasarathy S. Raghavan, Chandra P. Khattak, Carl Chartier, Dave Lackey, Dean C. Skelton
  • CRYSTAL GROWTH APPARATUS WITH CERAMIC COATING AND METHODS FOR PREVENTING MOLTEN MATERIAL BREACH IN A CRYSTAL GROWTH APPARATUS
    Publication number: 20120048179
    Abstract: A method for preventing molten material breach in a crystal growth apparatus includes providing a chamber of the crystal growth apparatus which is coated with a ceramic material. The chamber can be coated on an interior surface to prevent damage to the chamber itself, which is made of steel, and to prevent steam explosions in the water-cooled chamber. Ceramic blanket layers also can be provided over the coated interior surface of the chamber. As a result, it is possible to produce high quality crystalline products while minimizing the hazards and costs in the event of a spill of molten material.
    Type: Application
    Filed: August 8, 2011
    Publication date: March 1, 2012
    Applicant: GT SOLAR, INC.
    Inventors: Bhuvaragasamy G. Ravi, Parthasarathy S. Raghavan, Chandra P. Khattak, Carl Chartier, Dave Lackey, Dean C. Skelton