Patents by Inventor Ranjan Akhaury

Ranjan Akhaury 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).

  • Patent number: 5719035
    Abstract: The present invention is a method for assaying enzyme activity in a red blood sample. The method comprises these steps: (a) placing the following in a sample well: (1) a red blood sample containing an enzyme, (2) a substrate or substrates for the enzyme, (3) water, and (4) a buffer; (b) incubating the contents of the sample well for sufficient time and at sufficient temperature to allow for the formation of a fluorescent enzyme product should the enzyme be present in said red blood sample; (c) precipitating the hemoglobin; and (d) measuring the fluorescence of any fluorescent enzyme product formed in the sample well, directly from that sample well. The method of the invention may be used for assaying the activity of an enzyme, such as galactose-1-phosphate uridyl transferase (GALT) or biotinidase, in a red blood sample.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: February 17, 1998
    Assignee: Isolab, Inc.
    Inventors: Murray A. Rosenthal, Ronald A. Simkins, Ranjan Akhaury
  • Patent number: 5538857
    Abstract: The present invention is a method for assaying enzyme activity in a red blood sample. The method comprises these steps: (a) placing the following in a sample well: (1) a red blood sample containing an enzyme, (2) a substrate or substrates for the enzyme, (3) water, and (4) a buffer; (b) incubating the contents of the sample well for sufficient time and at sufficient temperature to allow for the formation of a fluorescent enzyme product should the enzyme be present in the red blood sample; (c) precipitating the hemoglobin; and (d) measuring the fluorescence of any fluorescent enzyme product formed in the sample well, directly from that sample well. The method of the invention may be used for assaying the activity of an enzyme, such as galactose-1-phosphate uridyl transferase (GALT) or biotinidase, in a red blood sample.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: July 23, 1996
    Assignee: Isolab, Inc.
    Inventors: Murray A. Rosenthal, Ronald A. Simkins, Ranjan Akhaury
  • Patent number: 5252620
    Abstract: Supercritical drying has distinct advantages in generating microcellular materials. The dimensional stability of the polymer is not affected on drying because the supercritical process does not go through the two phase path and therefore the effect of capillary forces is absent. This helps in maintaining the morphology of the final polymer structure and better control over cell size.Organic microcellular foams were prepared by polymerizing directly in a near-critical fluid and pursuing the supercritical drying in the same reactor. The critical variables are the choice of a diluent with a strong enough solvent power to stabilize the polymer matrix, but with a low enough critical temperature to permit critical point drying without damage to the polymer matrix.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: October 12, 1993
    Assignee: University of Akron
    Inventors: Jarrell R. Elliott, Jr., Gokul Srinivasan, Manish Dhanuka, Ranjan Akhaury
  • Patent number: 5128382
    Abstract: Supercritical drying has distinct advantages in generating microcellular materials. The dimensional stability of the polymer is not affected on drying because the supercritical process does not go through the two phase path and therefore the effect of capillary forces is absent. This helps in maintaining the morphology of the final polymer structure and better control over cell size.Organic microcellular foams were prepared by polymerizing directly in a near-critical fluid and pursuing the supercritical drying in the same reactor. The critical variables are the choice of a diluent with a strong enough solvent power to stabilize the polymer matrix, but with a low enough critical temperature to permit critical point drying without damage to the polymer matrix.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: July 7, 1992
    Assignee: The University of Akron
    Inventors: Jarrell R. Elliott, Jr., Gokul Srinivasan, Manish Dhanuka, Ranjan Akhaury