Patents Assigned to CVD Inc.
  • Low stress, water-clear zinc sulfide
    Publication number: 20010008622
    Abstract: The machinability of water-clear zinc sulfide articles produced by chemical vapor deposition and high temperature, high isostatic pressure (HIP) treatment is enhanced by extending the time over which the article is cooled following the HIP treatment. The resulting low stress, water-clear zinc sulfide articles can be more accurately finished/machined to precise shapes, such as are required in optical applications, than was previously possible.
    Type: Application
    Filed: January 13, 2001
    Publication date: July 19, 2001
    Applicant: CVD Inc.
    Inventor: Jitendra S. Goela
  • Low stress, water-clear zinc sulfide
    Patent number: 6221482
    Abstract: The machinability of water-clear zinc sulfide articles produced by chemical vapor deposition and high temperature, high isostatic pressure (HIP) treatment is enhanced by extending the time over which the article is cooled following the HIP treatment. The resulting low stress, water-clear zinc sulfide articles can be more accurately finished/machined to precise shapes, such as are required in optical applications, than was previously possible.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: April 24, 2001
    Assignee: CVD Inc.
    Inventor: Jitendra S. Goela