Patents by Inventor Lalit M. Bhalla

Lalit M. Bhalla 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 of replenishing a liquid developer
    Patent number: 5304451
    Abstract: A dry toner is added to a liquid carrier to replenish a liquid developer in an electrostatographic printing machine.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: April 19, 1994
    Assignee: Xerox Corporation
    Inventors: Thomas Felder, Ronald Koch, Lalit M. Bhalla
  • Organometallic compounds as mottle prevention additives in liquid electrostatic developers
    Patent number: 4994341
    Abstract: Electrostatic liquid developer consisting essentially of(A) nonpolar liquid, Kauri-butanol value less than 30,(B) particles of thermoplastic resin having free carboxyl groups (<30.mu.m ave particle size),(C) nonpolar liquid soluble oil-soluble petroleum sulfonate or anionic glyceride charge director, and(D) at least one organometallic compound as defined present in 0.01 to 0.15 part by weight metal based on the total weight of liquid developer. The process of preparation of the liquid developer is also disclosed. The developers demonstrate reduced mottle in a fused image. The developers are used in copying, color proofing, preparation of lithographic printing plates and resists.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: February 19, 1991
    Assignee: DXImaging
    Inventors: Paul C. Adair, Lalit M. Bhalla, Ronald L. Mueller