Patents by Inventor Wai-Wah Yiu

Wai-Wah Yiu 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).

  • MULTI-MOVEMENT COSMETIC DEVICE
    Publication number: 20210045776
    Abstract: A multi-movement cosmetic assembly includes a housing defining an interior; a drive system disposed within the housing; a sleeve received within the housing; and a drive shaft positioned in the sleeve. The drive system is operably coupled to the sleeve and the drive shaft such that actuation of the drive system causes (i) the sleeve to move laterally back and forth to oscillate relative to the housing, and (ii) the drive shaft to rotate relative to the housing.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 18, 2021
    Applicant: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Multi-movement cosmetic device
    Patent number: 10813669
    Abstract: A multi-movement cosmetic assembly includes a housing defining an interior; a drive system disposed within the housing; a sleeve received within the housing; and a drive shaft positioned in the sleeve. The drive system is operably coupled to the sleeve and the drive shaft such that actuation of the drive system causes (i) the sleeve to move laterally back and forth to oscillate relative to the housing, and (ii) the drive shaft to rotate relative to the housing.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: October 27, 2020
    Assignee: SOFT LINES INTERNATIONAL, LTD
    Inventor: Wai Wah Yiu
  • Handheld cosmetic device with pivoting head
    Patent number: 10045795
    Abstract: A cosmetic device includes a housing having a handle portion, a head assembly coupled to the handle portion, and a drum assembly within the head assembly. The drum assembly includes a drum having an outer surface configured to abrade the skin or nails of a user during rotation of the drum. The device further includes a electromechanical drive system located within the housing and configured to rotate the drum. The head assembly is configured to rotate about an axis that is substantially perpendicular to the axis of rotation of the drum.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: August 14, 2018
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • MULTI-MOVEMENT COSMETIC DEVICE
    Publication number: 20180055540
    Abstract: A multi-movement cosmetic assembly includes a housing defining an interior; a drive system disposed within the housing; a sleeve received within the housing; and a drive shaft positioned in the sleeve. The drive system is operably coupled to the sleeve and the drive shaft such that actuation of the drive system causes (i) the sleeve to move laterally back and forth to oscillate relative to the housing, and (ii) the drive shaft to rotate relative to the housing.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Inventor: Wai Wah Yiu
  • Nail care device
    Patent number: 9901157
    Abstract: A nail care device includes a housing defining a slot extending through the housing and to a cavity; a drive mechanism disposed within the housing and including a drive member extending into the cavity; and a drum assembly configured to be removably engaged with the drive member, the drum assembly including an abrasive drum configured to be received within the cavity and a hub configured to extend to an exterior of the cavity and the housing.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: February 27, 2018
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • HANDHELD COSMETIC DEVICE WITH PIVOTING HEAD
    Publication number: 20170290606
    Abstract: A cosmetic device includes a housing having a handle portion, a head assembly coupled to the handle portion, and a drum assembly within the head assembly. The drum assembly includes a drum having an outer surface configured to abrade the skin or nails of a user during rotation of the drum. The device further includes a electromechanical drive system located within the housing and configured to rotate the drum. The head assembly is configured to rotate about an axis that is substantially perpendicular to the axis of rotation of the drum.
    Type: Application
    Filed: April 7, 2016
    Publication date: October 12, 2017
    Inventor: Wai Wah Yiu
  • Adjustable roller and cosmetic device
    Patent number: 9615645
    Abstract: A roller assembly for a cosmetic device includes a cylindrical drum portion having an interior and an abrasive outer surface; first and second ends enclosing opposite ends of the cylindrical drum portion; and first and second posts extending from the interior of the cylindrical drum portion and being movable along a longitudinal axis of the roller assembly.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 11, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • NAIL CARE DEVICE
    Publication number: 20170042306
    Abstract: A nail care device includes a housing defining a slot extending through the housing and to a cavity; a drive mechanism disposed within the housing and including a drive member extending into the cavity; and a drum assembly configured to be removably engaged with the drive member, the drum assembly including an abrasive drum configured to be received within the cavity and a hub configured to extend to an exterior of the cavity and the housing.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 16, 2017
    Inventor: Wai Wah Yiu
  • Drum assembly, cosmetic device with drum assembly, and battery compartment for cosmetic device
    Patent number: 9491997
    Abstract: A cosmetic device is provided. The cosmetic device includes a housing; a drum assembly rotatably coupled to the housing, the drum assembly including an abrasive outer surface and a deformable portion disposed below the abrasive outer surface; and a drive system configured to rotate the drum assembly relative to the housing.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 15, 2016
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • ADJUSTABLE ROLLER AND COSMETIC DEVICE
    Publication number: 20160295988
    Abstract: A roller assembly for a cosmetic device includes a cylindrical drum portion having an interior and an abrasive outer surface; first and second ends enclosing opposite ends of the cylindrical drum portion; and first and second posts extending from the interior of the cylindrical drum portion and being movable along a longitudinal axis of the roller assembly.
    Type: Application
    Filed: August 21, 2015
    Publication date: October 13, 2016
    Applicant: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Handheld exfoliating device
    Patent number: 9339099
    Abstract: A skin removal device includes a housing having a handle portion, a drum assembly coupled to the handle portion and including a drum, the drum having an abrasive outer surface configured to abrade skin of a user during rotation of the drum, and an electromechanical drive system disposed at least partially within the housing and configured to rotate the drum. The drum assembly is moveable in a lateral direction relative to the handle portion to enable insertion and removal of the drum assembly.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 17, 2016
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Cosmetic abrasion device
    Patent number: D756034
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 10, 2016
    Assignee: FORSTAR LIMITED
    Inventor: Wai Wah Yiu
  • Nail trimmer
    Patent number: D780998
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: March 7, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Nail care device
    Patent number: D788369
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 30, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Cosmetic abrasion device
    Patent number: D788980
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: June 6, 2017
    Assignee: FORSTAR LIMITED
    Inventor: Wai Wah Yiu
  • Nail and skin abrasion device
    Patent number: D788981
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: June 6, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Cosmetic abrasion device
    Patent number: D788982
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 6, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Nail and skin abrasion device
    Patent number: D788983
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: June 6, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Nail care device
    Patent number: D788984
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: June 6, 2017
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu
  • Cartridge for cosmetic device
    Patent number: D825108
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 7, 2018
    Assignee: SOFT LINES INTERNATIONAL, LTD.
    Inventor: Wai Wah Yiu