Patents by Inventor Nadia Vermant

Nadia Vermant 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).

  • Method for preparing tabular grains rich in silver chloride with reduced thickness growth and improved homogeneity
    Patent number: 6010840
    Abstract: A method has been described for preparing a gelatinous emulsion having grains rich in silver choride, wherein at least 70%, and more preferred 90%, of the total projected area of all grains is provided by {111} tabular grains having an average aspect ratio of more than 2:1, an average equivalent circular diameter of at least 0.3 .mu.m and an average thickness of from 0.05 to 0.25 .mu.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: January 4, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Peter Verrept, Ann Verbeeck, Nadia Vermant, Frank Louwet