Patents by Inventor James C. M. Hayes

James C. M. Hayes 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).

  • PHOTOLUMINESCENT NANOCRYSTAL BASED TAGGANTS
    Publication number: 20100275807
    Abstract: A taggant for marking a target through the use of a carrier or a projectile loaded on a firing device and methods for fabricating the same are disclosed. The taggant including photoluminescent semiconductor nanocrystal(s) materials incorporated in a carrier or projectile. The photoluminescent semiconductor nanocrystal(s) materials may be encapsulated in a medium for facilitating marking of the target.
    Type: Application
    Filed: February 15, 2008
    Publication date: November 4, 2010
    Inventors: Daniel P. Landry, Luis A. Sanchez, James C.M. Hayes, Eva M. Sackal
  • Method and system for the recognition of an optical signal
    Patent number: 7777870
    Abstract: A system and method for distinguishing a first light source from other light sources utilizes an image receiver that can selectively engage and disengage a filter. The filter can be configured to block bands of light corresponding to the light being emitted by either the first source or the other sources. By alternately engaging and disengaging the filter from the image receiver, the first light source may be distinguished from other light sources.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: August 17, 2010
    Assignee: Evident Technologies, Inc.
    Inventors: James C. M. Hayes, Luis A. Sanchez, Eva Marie Sackal, Clinton T. Ballinger
  • METHOD AND SYSTEM FOR THE RECOGNITION OF AN OPTICAL SIGNAL
    Publication number: 20080205052
    Abstract: A system and method for distinguishing a first light source from other light sources utilizes an image receiver that can selectively engage and disengage a filter. The filter can be configured to block bands of light corresponding to the light being emitted by either the first source or the other sources. By alternately engaging and disengaging the filter from the image receiver, the first light source may be distinguished from other light sources.
    Type: Application
    Filed: January 21, 2008
    Publication date: August 28, 2008
    Inventors: James C.M. Hayes, Luis A. Sanchez, Eva Marie Sackal, Clinton T. Ballinger
  • SEMICONDUCTOR NANOCRYSTALS AS MARKING DEVICES
    Publication number: 20080191027
    Abstract: The invention provides devices and methods for marking an object using semiconductor nanocrystals. In some embodiments, marking devices according to the invention include semiconductor nanocrystals patterned to form a barcode, the semiconductor nanocrystals being selected from a group consisting of: CdSe, CdS, CdTe, InAs, InSb, InGaSb, InGaN, InGaP, InP, GaP, GaN, HgTe, HgSe, HgS, CnS, ZnSe, ZnS, ZnCdSe, PbS, PbSe, PbTe, CuInGaS2, CuInGaSe2, ZnCuInGaS2, and ZnCuInGaSe2.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 14, 2008
    Inventors: San Ming Yang, Luis A. Sanchez, James C.M. Hayes, Eva Marie Sackal