Patents by Inventor Praveen Medis

Praveen Medis 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: 8378559
    Abstract: The disclosed system includes a two-phase cooling apparatus configured for cooling an array of LED dies.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: February 19, 2013
    Assignee: Progressive Cooling Solutions, Inc.
    Inventors: Ahmed Shuja, Tom Griffin, Praveen Medis, Phil Craine
  • Publication number: 20130010464
    Abstract: A high intensity lamp is described herein. The lamp comprises a LED array emitting a light and a two-phase cooling apparatus. The LED array includes a plurality of LEDs. The LEDs are arranged in close proximity so that a luminous emittance from a emitter area of the LED array is at least 1000 lumens per square centimeter. The two-phase cooling apparatus is thermally coupled to the LED array.
    Type: Application
    Filed: March 14, 2012
    Publication date: January 10, 2013
    Applicant: BritePointe, Inc.
    Inventors: Ahmed Shuja, Tom Griffin, Ron Van Thiel, Phil Craine, Praveen Medis
  • Publication number: 20110043092
    Abstract: The disclosed system includes a two-phase cooling apparatus configured for cooling an array of LED dies.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Applicant: Progressive Cooling Solutions, Inc.
    Inventors: Ahmed Shuja, Tom Griffin, Praveen Medis, Phil Craine
  • Patent number: 7723845
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 25, 2010
    Assignee: University of Cincinnati
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Patent number: 7723760
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 25, 2010
    Assignee: University of Cincinnati
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Patent number: 7705342
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 W/cm2).
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: April 27, 2010
    Assignee: University of Cincinnati
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Patent number: 7692926
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotropic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: April 6, 2010
    Assignee: Progressive Cooling Solutions, Inc.
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Publication number: 20080128898
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotropic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Publication number: 20080115913
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60w/cm2).
    Type: Application
    Filed: October 31, 2007
    Publication date: May 22, 2008
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Publication number: 20080115912
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).
    Type: Application
    Filed: October 31, 2007
    Publication date: May 22, 2008
    Inventors: H. Thurman HENDERSON, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Publication number: 20080110598
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).
    Type: Application
    Filed: October 31, 2007
    Publication date: May 15, 2008
    Inventors: H. Thurman Henderson, Ahmed Shuja, Srinivas Parimi, Frank M. Gerner, Praveen Medis
  • Publication number: 20070095507
    Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60W/cm2).
    Type: Application
    Filed: September 8, 2006
    Publication date: May 3, 2007
    Applicant: University of Cincinnati
    Inventors: H. Henderson, Ahmed Shuja, Srinivas Parimi, Frank Gerner, Praveen Medis
  • Patent number: D691749
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 15, 2013
    Assignee: Britepointe, Inc.
    Inventors: Ahmed Shuja, Ron van Thiel, Tom Griffin, Praveen Medis, Phil Craine