Patents by Inventor Davakaran Masilamani

Davakaran Masilamani 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).

  • Fluorogenic and chromogenic three-dimensional ionophores as selective reagents for detecting ions in biological fluids
    Patent number: 5162525
    Abstract: Novel fluorogenic and chromogenic three-dimensional ionophores are provided which selectively bond ions such as potassium, sodium, and lithium, even in neutral aqueous or alcohol media. The novel ionophores comprse an "ion-recognizing system" fused to a "signal-moiety" through one or more heteroatoms having a non-bonded electron pair. The signal-moieties are selected from the group consisting of fused ring heterocyclics, fused aromatics, and substituted aromatics having at least one nitro or azo moiety. The ion-recognizing system is a three-dimensional cryptand. The ionophores are ideal for the selective and direct termination of ions in biological or environmental samples and the like.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: November 10, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Davakaran Masilamani, Mariann E. Lucas, George S. Hammond