Patents by Inventor Dharambir Singh Dodd

Dharambir Singh Dodd 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).

  • Antiglare optical device
    Patent number: 6674587
    Abstract: The present invention relates to a method of deposition of an absorbing material upon a plastic/glass substrate by vacuum coating at an angle of inclination between 5° to 30° and using a mask on the evaporation source to produce a graded film material and a method for the preparation of graded density absorbing film useful as an antiglare optical device for protecting the eyes by reducing the glare by absorbing the light intensity falling upon it in a non-uniform fashion.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: January 6, 2004
    Assignee: Council of Scientific Research
    Inventors: Deep Singh Chhabra, Parinam Krisna Rao, Bipin Dev Sharma, Dharambir Singh Dodd, Virender Singh, Sanjay Sharma
  • Antiglare optical device
    Publication number: 20030016460
    Abstract: The present invention relates to a method of deposition of an absorbing material upon a plastic/glass substrate by vacuum coating at an angle of inclination between 5° to 30° and using a mask on the evaporation source to produce a graded film material and a method for the preparation of graded density absorbing film useful as an antiglare optical device for protecting the eyes by reducing the glare by absorbing the light intensity falling upon it in a non-uniform fashion.
    Type: Application
    Filed: March 30, 2001
    Publication date: January 23, 2003
    Inventors: Deep Singh Chhabra, Parinam Krisna Rao, Bipin Dev Sharma, Dharambir Singh Dodd, Virender Singh, Sanjay Sharma