Patents by Inventor Jasjit J. Singh

Jasjit J. Singh 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).

  • CORRECTION FOR ILLUMINATION NON-UNIFORMITY DURING THE SYNTHESIS OF ARRAYS OF OLIGOMERS
    Publication number: 20080318809
    Abstract: The present invention provides an apparatus and a method for the synthesis of arrays of oligomers that have tight illumination intensity requirement. The apparatus and the method contain a mechanism to correct for illumination non-uniformity during the oligomer array synthesis process. To correct for illumination non-uniformity, the illumination intensity of different oligomer synthesis positions across an area in which oligomers are synthesized are determined first. Then, the differences in illumination intensity among the positions are evaluated mathematically. Next, any non-uniformity in illumination intensity is corrected by either reducing the intensity of the light for the brighter positions before the light reaches the illumination area or reducing the illumination time of the brighter positions during one protection group deprotection period.
    Type: Application
    Filed: June 18, 2008
    Publication date: December 25, 2008
    Inventors: ROLAND GREEN, FRANCESCO CERRINA, JASJIT J. SINGH
  • Correction for illumination non-uniformity during the synthesis of arrays of oligomers
    Patent number: 7422851
    Abstract: The present invention provides an apparatus and a method for the synthesis of arrays of oligomers that have tight illumination intensity requirement. The apparatus and the method contains a mechanism to correct for illumination nonuniformity during the oligomer array synthesis process. To correct for illumination nonuniformity, the illumination intensity of different oligomer synthesis positions across an area in which oligomers are synthesized are determined first. Then, the difference in illumination intensity among the positions are evaluated mathematically. Next, any nonuniformity in illumination intensity is corrected by either reducing the intensity of the light for the brighter positions before the light reaches the illumination area or reducing the illumination time of the brighter positions during one protection group deprotection period.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: September 9, 2008
    Assignee: Nimblegen Systems, Inc.
    Inventors: Roland Green, Francesco Cerrina, Jasjit J. Singh
  • Correction for illumination non-uniformity during the synthesis of arrays of oligomers
    Publication number: 20030143550
    Abstract: The present invention provides an apparatus and a method for the synthesis of arrays of oligomers that have tight illumination intensity requirement. The apparatus and the method contains a mechanism to correct for illumination nonuniformity during the oligomer array synthesis process. To correct for illumination nonuniformity, the illumination intensity of different oligomer synthesis positions across an area in which oligomers are synthesized are determined first. Then, the difference in illumination intensity among the positions are evaluated mathematically. Next, any nonuniformity in illumination intensity is corrected by either reducing the intensity of the light for the brighter positions before the light reaches the illumination area or reducing the illumination time of the brighter positions during one protection group deprotection period.
    Type: Application
    Filed: January 31, 2002
    Publication date: July 31, 2003
    Inventors: Roland Green, Francesco Cerrina, Jasjit J. Singh