Patents by Inventor Kevin Le

Kevin Le 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).

  • Publication number: 20100116659
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 13, 2010
    Applicant: Life Technologies Corporation
    Inventors: ChangSheng Liu, Kevin Le Van
  • Publication number: 20090230737
    Abstract: A pedicure chair for user including a child or young adult may include a tub member for the feet of the user, a seat member for the user to sit on, a back rest member connected to the seat member to rest the back of the user, a head rest member connected to the back rest member to rest the head of the user, and an arm member connected to the back rest member to rest the arms of the user. The back rest member may correspond to a first decoration, the head rest member may correspond corresponds to the first decoration and the arm member may be decorated to simulate an animal or cartoon character. The arm member may rotate with respect to the back rest member, and the head rest member may detach from the back rest member. The tub member may be connected to a stand member for supporting a entertainment device, and the entertainment device may be a DVD device.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 17, 2009
    Inventors: Kevin Le, Thanh Le
  • Publication number: 20090230738
    Abstract: A pedicure chair for user including a child or young adult may include a tub member for the feet of the user, a seat member for the user to sit on, a back rest member connected to the seat member to rest the back of the user, a head rest member connected to the back rest member to rest the head of the user, and an arm member connected to the back rest member to rest the arms of the user. The back rest member may correspond to a first decoration to catch the attention of the child or young adult, and the head rest member may correspond to the first decoration to catch the attention of the child or young adult. The arm member may be decorated to catch the attention of the child or young adult. The first decoration may correspond to a car, and the first decoration may correspond to a princess. The first decoration may correspond to a little house, and the first decoration may correspond to a castle. The first decoration may correspond to an animal, and the first decoration may correspond to a movie character.
    Type: Application
    Filed: August 13, 2008
    Publication date: September 17, 2009
    Inventors: Kevin Le, Thanh Le
  • Publication number: 20090224994
    Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 10, 2009
    Inventors: Kevin Le, Louis J. Meyer, Pete Bisiules
  • Publication number: 20090210051
    Abstract: A holder for an annuloplasty ring is disclosed. It comprises a plurality of linked-together suture platforms, wherein said holder comprises an upper face, a lower face, and a closed peripheral edge with means for accommodating and supporting said suture platforms of said annuloplasty ring.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 20, 2009
    Inventors: Caroline CAMEDDA, Kevin LE GALLO
  • Publication number: 20090151740
    Abstract: A manicure device may include a suction source, a flexible hose connected to the suction source, a suction member adapted to be connected to a manicure device or brush. The suction source may be adapted to be operated by a foot of the user, and the suction member may be detachably connected to the manicure device. The suction member may be detachably connected to the brush, and the suction source may include a top housing. The suction source may include a handle, and the suction source may include a inner holder. The suction source may include a bottom housing, and the suction source may include a power switch which is operable by a foot of the user. The suction source may include a motor, and the suction source may include a bottom cover. The suction source may include a bumper, and the manicure device may include a suction nozzle with the curved end.
    Type: Application
    Filed: December 16, 2007
    Publication date: June 18, 2009
    Inventors: Kevin LE, Thanh LE
  • Patent number: 7535430
    Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: May 19, 2009
    Assignee: Andrew LLC
    Inventors: Kevin Le, Louis J. Meyer, Pete Bisiules
  • Publication number: 20080258903
    Abstract: A multifunctional powerline sensor network used for fire, toxic chemical gases and intruder detections. The network is comprised a master device, an array of sensor nodes, a host device/computer and the existing powerlines in the building/facility. This network offers many advantages including cost effectiveness, multifunction, high integration and ease of installation. The master device communicates with all the sensor nodes via the powerlines. When the motion sensors are enabled, the network converts to a advanced security alarm system that provides an alert when the security of the facility has been compromised by locating and tracking the position of the intruder.
    Type: Application
    Filed: April 22, 2007
    Publication date: October 23, 2008
    Inventors: Kevin Le, Thanh La
  • Publication number: 20080239984
    Abstract: An energy saving system/network is used to control the power of air conditioners (AC) in hotels/motels. The system includes a master device and an array of slave devices. The master device may be installed in the hotel/motel front desk area, while the slave devices may be installed in guest rooms. The master device communicates with the slave devices via the power lines in the hotels/motels. This system/network automatically turns on the AC power when the guest is checked in and turns off the AC power when the guest is checked out.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 2, 2008
    Inventors: Kevin Le, Thanh Le
  • Publication number: 20080088521
    Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
    Type: Application
    Filed: December 6, 2007
    Publication date: April 17, 2008
    Inventors: Kevin Le, Louis Meyer, Pete Bisiules
  • Patent number: 7358922
    Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: April 15, 2008
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Kevin Le, Louis J. Meyer, Pete Bisiules
  • Patent number: 7173572
    Abstract: A dual band, dual pole, variable downtilt, 90 degree azimuth beamwidth antenna (10). The antenna includes dipole elements (12, 14) forming both a PCS band and a cellular band antenna. The PCS band antenna has two sections disposed each side of the cellular band antenna, the elements of each being positioned 90° with respect to the other. A microstrip feed network formed upon a common PC board (18) feeds the respective dipole elements, and has serpentine portions with a corresponding dielectric member slideable thereover to establish the phase of the associated dipole antennas and achieve a linear downtilt of the respective antenna array. A slide rod adjustment assembly (100) provides unitary movement of the dielectric members between two different slide rods. These dielectric members are secured with adhesive to the respective slide rods to achieve good dielectric control and no use of hardware.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: February 6, 2007
    Assignee: Andrew Corporation
    Inventors: Anthony Teillet, Michael F. Bonczyk, Igor Timofeev, Kevin Le, T. Huy Cao
  • Patent number: 7075497
    Abstract: An antenna (10) having a plurality of unitary dipole antennas (12) formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas (12) are fed by two stripline feed systems (20, 22). Each of these feed systems are separated above and extend over a groundplane (14) and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters (40, 42, 44) in combination with a downtilt control lever (52) are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90° upward to couple to the respective dipole antennas (12).
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: July 11, 2006
    Assignee: Andrew Corporation
    Inventors: Anthony Teillet, Kevin Le
  • Patent number: 6974527
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: December 13, 2005
    Assignee: SpectruMedix LLC
    Inventors: ChangSheng Liu, Kevin Le Van
  • Publication number: 20050217996
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 6, 2005
    Inventors: ChangSheng Liu, Kevin Le Van
  • Publication number: 20050179610
    Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
    Type: Application
    Filed: April 13, 2005
    Publication date: August 18, 2005
    Inventors: Kevin Le, Louis Meyer, Pete Bisiules
  • Patent number: 6924776
    Abstract: A dual polarized variable beam tilt antenna (10) having a plurality of offset element trays (12) each supporting pairs of dipole elements (14) to orient the dipole element pattern boresight at a downtilt. The maximum squint level of the antenna is a consistent downtilt off of boresight and which is at the midpoint of the antenna tilt range. The antenna provides a high roll-off radiation pattern through the use of Yagi dipole elements configured in this arrangement, having a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, and is operable over an expanded frequency range.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: August 2, 2005
    Assignee: Andrew Corporation
    Inventors: Kevin Le, Louis J. Meyer
  • Publication number: 20050057417
    Abstract: A dual band, dual pol, variable downtilt, 90 degree azimuth beamwidth antenna (10). The antenna includes dipole elements (12, 14) forming both a PCS band and a cellular band antenna. The PCS band antenna has two sections disposed each side of the cellular band antenna, the elements of each being positioned 90° with respect to the other. A microstrip feed network formed upon a common PC board (18) feeds the respective dipole elements, and has serpentine portions with a corresponding dielectric member slideable thereover to establish the phase of the associated dipole antennas and achieve a linear downtilt of the respective antenna array. A slide rod adjustment assembly (100) provides unitary movement of the dielectric members between two different slide rods. These dielectric members are secured with adhesive to the respective slide rods to achieve good dielectric control and no use of hardware.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 17, 2005
    Inventors: Anthony Teillet, Michael Bonczyk, Igor Timofeev, Kevin Le, T. Cao
  • Publication number: 20050001778
    Abstract: A dual polarized variable beam tilt antenna (10) having a plurality of offset element trays (12) each supporting pairs of dipole elements (14) to orient the dipole element pattern boresight at a downtilt. The maximum squint level of the antenna is a consistent downtilt off of boresight and which is at the midpoint of the antenna tilt range. The antenna provides a high roll-off radiation pattern through the use of Yagi dipole elements configured in this arrangement, having a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, and is operable over an expanded frequency range.
    Type: Application
    Filed: December 16, 2003
    Publication date: January 6, 2005
    Inventors: Kevin Le, Louis Meyer
  • Publication number: 20040263410
    Abstract: An antenna (10) having a plurality of unitary dipole antennas (12) formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas (12) are fed by two stripline feed systems (20, 22). Each of these feed systems are separated above and extend over a groundplane (14) and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters (40, 42, 44) in combination with a downtilt control lever (52) are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90° upward to couple to the respective dipole antennas (12).
    Type: Application
    Filed: April 5, 2004
    Publication date: December 30, 2004
    Applicant: ALLEN TELECOM GROUP, INC.
    Inventors: Anthony Teillet, Kevin Le