Patents by Inventor Sunand Banerji
Sunand Banerji 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).
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Publication number: 20140170706Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: ApplicationFiled: September 3, 2013Publication date: June 19, 2014Applicant: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Patent number: 8557196Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: GrantFiled: January 4, 2013Date of Patent: October 15, 2013Assignee: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Patent number: 8367014Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: GrantFiled: September 11, 2009Date of Patent: February 5, 2013Assignee: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Patent number: 7958736Abstract: An assembly that includes one or more thermoelectric devices and a heat sink and that corrects the problem of an uneven heating effect across the area occupied by the devices due to a lateral heat loss at the edges of the devices or other anomalies among the devices is constructed with a heat sink that contains voids in the slab or flat surface that is in thermal contact with the thermoelectric devices. The voids are located at or within the periphery of the area that is directly aligned with the thermoelectric devices and are concentrated in regions relatively close to the periphery, leaving an area in the center of the slab that is either void-free or of a relatively low void density.Type: GrantFiled: May 12, 2008Date of Patent: June 14, 2011Assignee: Bio-Rad Laboratories, Inc.Inventors: Sunand Banerji, Joseph N. Bretton, Vorin Hay
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Patent number: 7955573Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: GrantFiled: November 10, 2009Date of Patent: June 7, 2011Assignee: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Publication number: 20100055743Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: ApplicationFiled: November 10, 2009Publication date: March 4, 2010Applicant: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Publication number: 20100003725Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: ApplicationFiled: September 11, 2009Publication date: January 7, 2010Applicant: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Patent number: 7632464Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: GrantFiled: June 26, 2007Date of Patent: December 15, 2009Assignee: Bio-Rad Laboratories, Inc.Inventor: Sunand Banerji
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Publication number: 20080314557Abstract: An assembly that includes one or more thermoelectric devices and a heat sink and that corrects the problem of an uneven heating effect across the area occupied by the devices due to a lateral heat loss at the edges of the devices or other anomalies among the devices is constructed with a heat sink that contains voids in the slab or flat surface that is in thermal contact with the thermoelectric devices. The voids are located at or within the periphery of the area that is directly aligned with the thermoelectric devices and are concentrated in regions relatively close to the periphery, leaving an area in the center of the slab that is either void-free or of a relatively low void density.Type: ApplicationFiled: May 12, 2008Publication date: December 25, 2008Applicant: BIO-RAD LABORATORIES, INC.Inventors: Sunand Banerji, Joseph N. Bretton, Vorin Hay
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Publication number: 20080003650Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells.Type: ApplicationFiled: June 26, 2007Publication date: January 3, 2008Applicant: Bio-Rad Laboratories, Inc., MJ Research DivisionInventor: Sunand Banerji
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Publication number: 20080003149Abstract: A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the block is improved by the inclusion of hollows in the block that are positioned to decrease the mass of the block in the immediate vicinity of the wells while still retaining a rigid base.Type: ApplicationFiled: June 29, 2006Publication date: January 3, 2008Applicant: BIO-RAD LABORATORIES, INC.Inventor: Sunand Banerji
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Patent number: 7051536Abstract: Localized temperature control in a thermal cycler is achieved by thermoelectric modules that are protected from exposure to atmospheric moisture by a pair of loop-shaped gaskets that seal off an enclosure formed by the sample block, the heat sink, and a support frame to which the components are secured. The heat sink is a block with a plurality of fins and is secured to the thermoelectric modules by one or more clamping bars that fit between the fins and are arranged to eliminate interference with the fin geometry and with the functional surface area of the fins. Electric leads are embedded in a molded retainer element, each lead being in the shape of a āUā with two exposed legs joined by a bar at one end, one of the leads extending into the region sealed from the atmosphere and the other extending outside the region.Type: GrantFiled: November 12, 2004Date of Patent: May 30, 2006Assignee: Bio-Rad Laboratories, Inc.Inventors: David A. Cohen, Sunand Banerji, Michael J. Denninger
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Publication number: 20060101830Abstract: Localized temperature control in a thermal cycler is achieved by thermoelectric modules that are protected from exposure to atmospheric moisture by a pair of loop-shaped gaskets that seal off an enclosure formed by the sample block, the heat sink, and a support frame to which the components are secured. The heat sink is a block with a plurality of fins and is secured to the thermoelectric modules by one or more clamping bars that fit between the fins and are arranged to eliminate interference with the fin geometry and with the functional surface area of the fins. Electric leads are embedded in a molded retainer element, each lead being in the shape of a āUā with two exposed legs joined by a bar at one end, one of the leads extending into the region sealed from the atmosphere and the other extending outside the region.Type: ApplicationFiled: November 12, 2004Publication date: May 18, 2006Applicants: BIO-RAD LABORATORIES, INC.Inventors: David Cohen, Sunand Banerji, Michael Denninger