Patents by Inventor Michael Chau-Lun CHANG

Michael Chau-Lun CHANG 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: 10500699
    Abstract: A hands-free dual clamp device includes two clamping units, each having an upper clamping body, a lower clamping body, a mating portion, and a shaft module. The shaft module is spirally inserted through the upper and lower clamping bodies and is rotatable, so as to enable the upper and lower clamping bodies to be adjustable at angles with respect to each other and cooperatively form a clamping space for clamping an external object. A connecting module includes at least a connecting unit having two opposite end portions, which are respectively provided with a first connecting element and a second connecting element. The first connecting element connected to the mating portion of one of the clamping units, and the second connecting element connected to the mating portions of the other of the clamping units, so that the two clamping units are linked together with the connecting module.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: December 10, 2019
    Inventor: Michael Chau-Lun Chang
  • Publication number: 20190160632
    Abstract: A hands-free dual clamp device includes two clamping units, each having an upper clamping body, a lower clamping body, a mating portion, and a shaft module. The shaft module is spirally inserted through the upper and lower clamping bodies and is rotatable, so as to enable the upper and lower clamping bodies to be adjustable at angles with respect to each other and cooperatively form a clamping space for clamping an external object. A connecting module includes at least a connecting unit having two opposite end portions, which are respectively provided with a first connecting element and a second connecting element. The first connecting element connected to the mating portion of one of the clamping units, and the second connecting element connected to the mating portions of the other of the clamping units, so that the two clamping units are linked together with the connecting module.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Inventor: Michael Chau-Lun CHANG
  • Publication number: 20180187704
    Abstract: A hands-free dual clamp device includes two clamping units, each having an upper clamping body, a lower clamping body, a mating portion, and a shaft module. The shaft module is spirally inserted through the upper and lower clamping bodies and is rotatable, so as to enable the upper and lower clamping bodies to be adjustable at angles with respect to each other and cooperatively form a clamping space for clamping an external object. A connecting module includes at least a connecting unit having two opposite end portions, which are respectively provided with a first connecting element and a second connecting element. The first connecting element connected to the mating portion of one of the clamping units, and the second connecting element connected to the mating portions of the other of the clamping units, so that the two clamping units are linked together with the connecting module.
    Type: Application
    Filed: July 20, 2017
    Publication date: July 5, 2018
    Inventor: Michael Chau-Lun CHANG
  • Patent number: 9625086
    Abstract: A fixing device includes a base body, a connecting unit and a fixing unit. The base body includes a holding wall and a connecting wall having a connecting hole. The connecting hole has a plurality of tooth-like grooves. The holding wall is provided with a holding element for holding the base body onto a first external object. The connecting unit includes a connecting pole and an engaging element. The engaging element has at least a first engaging leg and a second engaging leg that correspondingly pass through the tooth-like grooves to be engaged in between the connecting wall and the holding wall, so as to connect the connecting unit and the base body, where the base body is rotatable upon the connecting pole. The fixing unit is connected to the connecting pole and is provided with a fixing element for securing the fixing unit onto a second external object.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 18, 2017
    Inventor: Michael Chau-Lun Chang
  • Patent number: 9625788
    Abstract: A flash illumination device for use with an electronic apparatus is provided and includes a connection unit and at least one organic light-emitting diode unit. The electronic apparatus includes a video shooting component or a display screen. The connection unit electrically connects with the electronic apparatus. The organic light-emitting diode unit is coated on a lateral surface of the connection unit and electrically connected to the electronic apparatus through the connection unit. The organic light-emitting diode unit starts under the control of the electronic apparatus and emits instantaneous light or persistent light, which is conductive to low power consumption and characterized by surface emission, while the video shooting component is capturing an image, so as to provide supplemental lighting.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: April 18, 2017
    Inventor: Michael Chau-Lun Chang
  • Publication number: 20160342070
    Abstract: A flash illumination device for use with an electronic apparatus is provided and includes a connection unit and at least one organic light-emitting diode unit. The electronic apparatus includes a video shooting component or a display screen. The connection unit electrically connects with the electronic apparatus. The organic light-emitting diode unit is coated on a lateral surface of the connection unit and electrically connected to the electronic apparatus through the connection unit. The organic light-emitting diode unit starts under the control of the electronic apparatus and emits instantaneous light or persistent light, which is conductive to low power consumption and characterized by surface emission, while the video shooting component is capturing an image, so as to provide supplemental lighting.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 24, 2016
    Inventor: Michael Chau-Lun CHANG
  • Publication number: 20160312946
    Abstract: A fixing device includes a base body, a connecting unit and a fixing unit. The base body includes a holding wall and a connecting wall having a connecting hole. The connecting hole has a plurality of tooth-like grooves. The holding wall is provided with a holding element for holding the base body onto a first external object. The connecting unit includes a connecting pole and an engaging element. The engaging element has at least a first engaging leg and a second engaging leg that correspondingly pass through the tooth-like grooves to be engaged in between the connecting wall and the holding wall, so as to connect the connecting unit and the base body, where the base body is rotatable upon the connecting pole. The fixing unit is connected to the connecting pole and is provided with a fixing element for securing the fixing unit onto a second external object.
    Type: Application
    Filed: April 24, 2015
    Publication date: October 27, 2016
    Inventor: Michael Chau-Lun CHANG
  • Patent number: 9273821
    Abstract: A positioning device working with a fixer for handheld, portable, mobile devices includes a securing member coupled to the fixer that serves to hold a mobile device in position. The securing member has a locking unit and a first connecting portion for engaging with the fixer. The securing member can secure the fixer onto an external article with the locking unit securing the securing member to the external article, so as to rapidly, removably suspend the mobile device at a nearby handrail. Thereby, the mobile device is strongly positioned over the external article by the locking unit and prevented from swinging or being displaced.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: March 1, 2016
    Inventor: Michael Chau-Lun Chang
  • Patent number: 9206943
    Abstract: An extension rod device working with a fixer for handheld, portable, mobile devices, and includes a rod body whose two ends are detachably attached with a positioning frame and a securing member. The positioning frame is adjustable to hold a mobile device, and the securing member secures the rod body and the positioning frame onto an external article, so as to suspend the mobile device. The extension rod device is capable of being easily and quickly mounted on or dismounted from any nearby handrail. When the positioning frame and the securing member are detached from the two ends of the rod body, the rod body can function as a portable personal article.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: December 8, 2015
    Inventor: Michael Chau-Lun Chang
  • Publication number: 20150267863
    Abstract: An extension rod device working with a fixer for handheld, portable, mobile devices, and includes a rod body whose two ends are detachably attached with a positioning frame and a securing member. The positioning frame is adjustable to hold a mobile device, and the securing member secures the rod body and the positioning frame onto an external article, so as to suspend the mobile device. The extension rod device is capable of being easily and quickly mounted on or dismounted from any nearby handrail. When the positioning frame and the securing member are detached from the two ends of the rod body, the rod body can function as a portable personal article.
    Type: Application
    Filed: June 5, 2015
    Publication date: September 24, 2015
    Inventor: Michael Chau-Lun CHANG
  • Patent number: 9115740
    Abstract: A fixer for handheld, portable, mobile devices includes an extension rod that has one end provided with a positioning frame for holding and positioning an external mobile device, and has an opposite end provided with a securing member for attaching and securing the extension rod and the positioning frame onto an external article, wherein the securing member and the external article are fixedly connected by a locking unit so as to suspend the mobile device. The fixer is portable and can be easily and quickly mounted on or dismounted from any nearby handrail, particularly as one typically provided in a public transportation vehicle.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: August 25, 2015
    Inventor: Michael Chau-Lun Chang
  • Publication number: 20150125202
    Abstract: A connecting hole having a teeth-like configuration, disposed on a female connecting article for connecting a male connecting article, includes a plurality of tooth portions spaced apart from each other and arranged radially about a center of the connecting hole at a predetermined angle. The male connecting article includes a connecting element formed with multiple circumferentially outwardly projecting portions corresponding in position to the plurality of tooth portions so as to allow the multiple circumferentially outwardly projecting portions to pass through the connecting hole and to be positioned by rotation of the male connecting article, such that the multiple projecting portions abut against a side surface of the connecting hole, and an outer periphery of the connecting element is in frictional contact with an inner periphery of the connecting hole.
    Type: Application
    Filed: October 29, 2014
    Publication date: May 7, 2015
    Inventor: Michael Chau-Lun CHANG
  • Publication number: 20140110895
    Abstract: A positioning device working with a fixer for handheld, portable, mobile devices includes a securing member coupled to the fixer that serves to hold a mobile device in position. The securing member has a locking unit and a first connecting portion for engaging with the fixer. The securing member can secure the fixer onto an external article with the locking unit securing the securing member to the external article, so as to rapidly, removably suspend the mobile device at a nearby handrail. Thereby, the mobile device is strongly positioned over the external article by the locking unit and prevented from swinging or being displaced.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Inventor: Michael Chau-Lun CHANG
  • Publication number: 20140110549
    Abstract: A protective sheath working with a fixer for handheld, portable, mobile devices has a positioning frame that is to be mounted onto an external fixer. The positioning frame has an enclosure using its inner wall to hold an external mobile device in position. The enclosure includes a first connecting portion that is detachable and configured to engage with the fixer. The fixer serves to hang the positioning frame over an external article so as to suspend the mobile device. Thereby, the mobile device can be easily and quickly mounted on or dismounted from any nearby handrail.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Inventor: Michael Chau-Lun CHANG
  • Publication number: 20140110544
    Abstract: A fixer for handheld, portable, mobile devices includes an extension rod that has one end provided with a positioning frame for holding and positioning an external mobile device, and has an opposite end provided with a securing member for attaching and securing the extension rod and the positioning frame onto an external article, wherein the securing member and the external article are fixedly connected by a locking unit so as to suspend the mobile device. The fixer is portable and can be easily and quickly mounted on or dismounted from any nearby handrail, particularly as one typically provided in a public transportation vehicle.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Inventor: Michael Chau-Lun CHANG
  • Publication number: 20140027596
    Abstract: An extension rod working with a fixer for handheld, portable, mobile devices includes a rod body whose two ends are detachably attached with a positioning frame and a securing member that are both of an external fixer, respectively. The positioning frame holds an external mobile device, and the securing member secures the rod body and the positioning frame onto an external article, so as to suspend the mobile device. The rod body its one end coupled with a second linking portion of the positioning frame and has the other end provided with a first linking portion that is configured to engage with the securing member. The extension rod can be easily and quickly mounted on or dismounted from any nearby handrail. When the positioning frame and the securing member are detached from the two ends of the rod body, the rod body can function as an umbrella or the like.
    Type: Application
    Filed: October 23, 2012
    Publication date: January 30, 2014
    Inventor: Michael Chau-Lun CHANG
  • Patent number: D870019
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: December 17, 2019
    Inventor: Michael Chau-Lun Chang
  • Patent number: D891507
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: July 28, 2020
    Inventor: Michael Chau-Lun Chang