Patents by Inventor Lequn Lu

Lequn Lu 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: 10411747
    Abstract: A case having battery box for smart phone/tablet comprises a box of smart phone/tablet, which is a rectangular open box having four side walls and a bottom, a chamber of the box of smart phone/tablet is the same of the size and shape of the smart phone/tablet, a top of each side wall is bended inward to form a holding ring for the smart phone/tablet; a battery box for containing batteries, which is a rectangular open box having a bottom which is a part bottom of the box of smart phone/tablet; a battery electric connecting means for connecting the batteries, with a power plug of the smart phone/tablet; a cover for closing the battery box and holding the batteries in the battery box; and a lock means for locking the cover with the battery box.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: September 10, 2019
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Patent number: 10305530
    Abstract: A case having gripping holes and corrugated bottom for tablet/mobile phone comprises a tablet box for placing a tablet/mobile phone thereon and a releasable holding means for the tablet/mobile phone, the releasable holding means is fixed on the tablet box. The tablet box has a corrugated bottom comprising a plurality of curved bands, the curved band has an arc cross section and two paralleled sides, the two sides are perpendicular to long sides of the tablet box. A plurality of gripping holes are arranged on the corrugated bottom, the gripping holes are rectangular hole, and the wide of the rectangular hole is smaller than half wide of the curved band.
    Type: Grant
    Filed: January 27, 2018
    Date of Patent: May 28, 2019
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Patent number: 10128891
    Abstract: A mobile phone/tablet case with finger grasping ring comprises a box for receiving a body of the mobile phone or tablet, a finger grasping ring is provided on the box bottom; the finger grasping ring is provided a multiple of finger holes which are enterable by fingers. Another embodiment the finger grasping ring has an elastic valve and an elastic belt; the elastic valve has one side connected with the elastic bottom together and other sides are separated from the bottom; the elastic belt has two opposite ends connected with the elastic valve together and other two opposite sides separated from the elastic valve, the elastic belt is parallel to long sides of the box. When the middle finger of user enter the gap between the belt and valve, the case with a mobile phone/tablet is grasped without thumb.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 13, 2018
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Patent number: 10105016
    Abstract: A portable water and energy saving bathtub used in a shower room or a bathtub comprises a body liking an opened container, a step on the bottom is located beside the end wall. The other end is a flashboard gate, which includes a groove on inner faces of the container, the flashboard capable of moving is inserted into the groove until to a bottom of the groove, a water seal ring is set between the groove and the flashboard. A reducing-volume-chunk likes a cuboid has two legs sitting on the side walls of container, therefore, the reducing-volume-chunk is hanged in the container. A locking-releasing-device locks or releases the rock for the reducing-volume-chunk with the container.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 23, 2018
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Publication number: 20180219571
    Abstract: A case having gripping holes and corrugated bottom for tablet/mobile phone comprises a tablet box for placing a tablet/mobile phone thereon and a releasable holding means for the tablet/mobile phone, the releasable holding means is fixed on the tablet box. The tablet box has a corrugated bottom comprising a plurality of curved bands, the curved band has an arc cross section and two paralleled sides, the two sides are perpendicular to long sides of the tablet box. A plurality of gripping holes are arranged on the corrugated bottom, the gripping holes are rectangular hole, and the wide of the rectangular hole is smaller than half wide of the curved band.
    Type: Application
    Filed: January 27, 2018
    Publication date: August 2, 2018
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Publication number: 20180152216
    Abstract: A case having battery box for smart phone/tablet comprises a box of smart phone/tablet, which is a rectangular open box having four side walls and a bottom, a chamber of the box of smart phone/tablet is the same of the size and shape of the smart phone/tablet, a top of each side wall is bended inward to form a holding ring for the smart phone/tablet; a battery box for containing batteries, which is a rectangular open box having a bottom which is a part bottom of the box of smart phone/tablet; a battery electric connecting means for connecting the batteries, with a power plug of the smart phone/tablet; a cover for closing the battery box and holding the batteries in the battery box; and a lock means for locking the cover with the battery box.
    Type: Application
    Filed: November 24, 2017
    Publication date: May 31, 2018
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Patent number: 9940809
    Abstract: A smart phone with application of preventing children from being left in a car includes a speedometer, a data processing center, a phone speaker, a micro phone, a touch screen and an application of preventing children from being left in a car (application). the application is programmed as the follows: the speedometer detects car speed and reports the car speed data to the application, when the car speed increasing from first speed to second speed the application issues a [REMINDER] of “if has children in the car” to a driver, when the car speed decreasing from third speed to 0 speed, the application issues a [WARNING] of “must bring children out of the car” to the driver.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 10, 2018
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Publication number: 20180078014
    Abstract: A case having gripping hole for tablet/mobile phone comprises a base plate for placing a tablet/mobile phone thereon; a releasable holding means for the tablet/mobile phone, the releasable holding means is fixed on the base plate; a cover plate for covering the tablet/mobile phone, a plurality of gripping hole arrayed in a line are on the cover plate and parallel to a long side of the cover plate, the gripping hole can be a rectangular hole; and an elastic connecting strip connects the base plate with the cover plate together. People can easy hold the case with tablet/mobile phone by using the gripping holes.
    Type: Application
    Filed: April 3, 2017
    Publication date: March 22, 2018
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Patent number: 9873380
    Abstract: An interior side mirror with multiple legs supporting device for side blind spot of a car. Which comprises a side mirror; a multiple legs supporting means, which is constructed by a connecting seat for fixing the side mirror with the multiple legs supporting means; a neck section made by half-solid metal wire; legs made by half-solid metal wire, ends of legs are connected with the neck section; adhesive components for fixing the legs on a place of interior surface of a car; the half-solid metal wire means the metal wire is flexible and is able to keep a bended shape after bending. This interior side mirror with a multiple legs supporting device can be used for any vehicle conveniently and get well side blind spot.
    Type: Grant
    Filed: August 30, 2015
    Date of Patent: January 23, 2018
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Publication number: 20170201286
    Abstract: A mobile phone/tablet case with finger grasping ring comprises a box for receiving a body of the mobile phone or tablet, a finger grasping ring is provided on the box bottom; the finger grasping ring is provided a multiple of finger holes which are enterable by fingers. Another embodiment the finger grasping ring has an elastic valve and an elastic belt; the elastic valve has one side connected with the elastic bottom together and other sides are separated from the bottom; the elastic belt has two opposite ends connected with the elastic valve together and other two opposite sides separated from the elastic valve, the elastic belt is parallel to long sides of the box. When the middle finger of user enter the gap between the belt and valve, the case with a mobile phone/tablet is grasped without thumb.
    Type: Application
    Filed: March 2, 2017
    Publication date: July 13, 2017
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Publication number: 20170140627
    Abstract: A smart phone with application of preventing children from being left in a car includes a speedometer, a data processing center, a phone speaker, a micro phone, a touch screen and an application of preventing children from being left in a car (application). the application is programmed as the follows: the speedometer detects car speed and reports the car speed data to the application, when the car speed increasing from first speed to second speed the application issues a [REMINDER] of “if has children in the car” to a driver, when the car speed decreasing from third speed to 0 speed, the application issues a [WARNING] of “must bring children out of the car” to the driver.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 18, 2017
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Patent number: 9494251
    Abstract: A two-way valve with secure structure for dispensing a large bottle of carbonated beverage into a vial comprises a valve body, valve spool, handle and bottle seal ring. The valve body has an inlet with an inner thread which matches an external thread of the large bottle and has an outlet with an inner thread which matches an external thread of the vials. The secure structure is an axial annular groove recessed axially into bottoms of the inner threads of the inlet and outlet of the valve body, one side of the axial recessed annular groove is the inner thread which extends to a bottom of the groove and other side is a groove wall, The bottle secure seal ring is deposited in the annular groove. Since the depth of the axial annular groove is greater than a thickness of the bottle seal ring, the outgoing pressure gas cannot reach the bottle seal ring.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: November 15, 2016
    Inventors: Davy Zide Qian, Benyu Qian, Lequn Lu
  • Publication number: 20160234364
    Abstract: A mobile phone/tablet shell with finger grasping ring comprises a box for receiving a body of the mobile phone or tablet, a finger grasping ring is provided on the box bottom; the finger grasping ring is provided a multiple of finger holes which are enterable by fingers; a turning connector connects the finger grasping ring with the box bottom, thereby the finger grasping ring is rotatable. The box is an elastic material, the finger grasping ring itself is a part of the box bottom, a part of surround of the finger grasping ring is divided from the box bottom and other part is still connected, the turning connector is an elastic connecting portion between the finger grasping ring and the box bottom.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 11, 2016
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Publication number: 20160096656
    Abstract: A two-way valve with secure structure for dispensing a large bottle of carbonated beverage into a vial comprises a valve body, valve spool, handle and bottle seal ring. The valve body has an inlet with an inner thread which matches an external thread of the large bottle and has an outlet with an inner thread which matches an external thread of the vials. The secure structure is an axial annular groove recessed axially into bottoms of the inner threads of the inlet and outlet of the valve body, one side of the axial recessed annular groove is the inner thread which extends to a bottom of the groove and other side is a groove wall, The bottle secure seal ring is deposited in the annular groove. Since the depth of the axial annular groove is greater than a thickness of the bottle seal ring, the outgoing pressure gas cannot reach the bottle seal ring.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 7, 2016
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Publication number: 20160059785
    Abstract: An interior side mirror with multiple legs supporting device for side blind spot of a car. Which comprises a side mirror; a multiple legs supporting means, which is constructed by a connecting seat for fixing the side mirror with the multiple legs supporting means; a neck section made by half-solid metal wire; legs made by half-solid metal wire, ends of legs are connected with the neck section; adhesive components for fixing the legs on a place of interior surface of a car; the half-solid metal wire means the metal wire is flexible and is able to keep a bended shape after bending. This interior side mirror with a multiple legs supporting device can be used for any vehicle conveniently and get well side blind spot.
    Type: Application
    Filed: August 30, 2015
    Publication date: March 3, 2016
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Patent number: 8884748
    Abstract: A method for preventing children from being left in a car and a device thereof. The method comprises testing a <starting signal>, a <trip ending signal> and driver judges if have children, send these information to a controlling device, if have children in car then the controlling device sends a action order to preventing device to take action to prevent the children being left in the car. A driver alarm for preventing children from being left in a car includes a power device, car startup measuring device, inquiring device, trip ending measuring device, preventing device and controlling device.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: November 11, 2014
    Inventors: Davy Zide Qian, Nicole Minhui Lu, Benyu Qian, Lequn Lu
  • Publication number: 20140063629
    Abstract: An interior side mirror for side blind spot of a car comprises a base fixed on the dash board or side door of the car, a side mirror, a flexible bar for connecting the base with the side mirror. The base and flexible bar locate the mirror at a best place before a driver, let the driver can view the side blind spot without turning head. The base can be anchor base or sand bag base or cardboard base or silicone sticky pad base or handle base. The flexible bar can be a ball-socket joint flexible bar or a flexible metal conduit bar. The mirror can be adjusted to a best place to reflect the blind spot.
    Type: Application
    Filed: August 17, 2013
    Publication date: March 6, 2014
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Publication number: 20140029123
    Abstract: An interior side mirror for side blind spot of a car comprises a base fixed on the dash board or side door of the car, a side mirror, a flexible bar for connecting the base with the side mirror. The base and flexible bar locate the mirror at a best place before a driver, let the driver can view the side blind spot without turning head. The base can be anchor base or sand bag base or cardboard base or silicone sticky pad base. The flexible bar can be a ball-socket joint flexible bar or a flexible metal conduit bar. The mirror can be adjusted to a best place to reflect the blind spot.
    Type: Application
    Filed: July 30, 2013
    Publication date: January 30, 2014
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Publication number: 20130263371
    Abstract: A portable water and energy saving bathtub used in a shower room or a bathtub comprises a body liking an opened container, a step on the bottom is located beside the end wall. The other end is a flashboard gate, which includes a groove on inner faces of the container, the flashboard capable of moving is inserted into the groove until to a bottom of the groove, a water seal ring is set between the groove and the flashboard. A reducing-volume-chunk likes a cuboid has two legs sitting on the side walls of container, therefore, the reducing-volume-chunk is hanged in the container. A locking-releasing-device locks or releases the rock for the reducing-volume-chunk with the container.
    Type: Application
    Filed: February 27, 2013
    Publication date: October 10, 2013
    Inventors: DAVY ZIDE QIAN, BENYU QIAN, LEQUN LU
  • Patent number: 8432271
    Abstract: A driver alarm for preventing children from being left in a car comprises a power device, a voltage measuring device, an inputting device, a prompting device and a controlling device. The power apparatus has a plug, which can be inserted into a cigarette-lighter socket in the car to become a power source for the driver alarm. The voltage measuring device is used to measure voltage of the cigarette-lighter in the car, the voltage rises when the car is started up and the voltage declines when the engine is turned off. The voltage measuring device reports to the controlling device about voltage rising or voltage declining. The inputting device is designed for a driver to report to the controlling device about whether children are in the cars or not. The promoting device is used to warn driver that there are children inside of the car when the car are started up or when the engines are turned off.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: April 30, 2013
    Inventors: Davy Zide Qian, Nicole Minhui Lu, Benyu Qian, Lequn Lu