Patents by Inventor Wa Chu

Wa Chu 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).

  • Fastening device for system irons
    Patent number: 8266829
    Abstract: A system iron comprises an iron and a base that has a receiving area for receiving the iron. The base comprises a fastening device for fastening the iron to the base. The fastening device includes a first engagement member and a second engagement member arranged at mutually opposite sides of the receiving area. At least one of the engagement members is displaceable in a direction away from the other engagement member and is biased towards the other engagement member. With such a fastening device, a user can safely and conveniently lock the iron to the base using just one of his hands for gripping the main grip portion of the iron.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 18, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mun Thoh Ma, Chandra Mohan Janakiraman, Ronald Albert Plantinga, L Bouhuys, Wa Chu
  • FASTENING DEVICE FOR SYSTEM IRONS
    Publication number: 20100199529
    Abstract: A system iron comprises an iron and a base that has a receiving area for receiving the iron. The base comprises a fastening device for fastening the iron to the base. The fastening device includes a first engagement member and a second engagement member arranged at mutually opposite sides of the receiving area. At least one of the engagement members is displaceable in a direction away from the other engagement member and is biased towards the other engagement member. With such a fastening device, a user can safely and conveniently lock the iron to the base using just one of his hands for gripping the main grip portion of the iron.
    Type: Application
    Filed: May 30, 2008
    Publication date: August 12, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Mun Thoh Ma, Chandra Mohan Janakiraman, Ronald Albert Plantinga, L. Bouhuys, Wa Chu
  • Flat-foldable face-mask and process of making same
    Publication number: 20060201513
    Abstract: Flat-folded personal respiratory device or a face-mask with a first portion and a second portion (31), connecting with each other along at least one common edge, flat-foldable along the common edge(s), a securing mean (32) responsive to the breathing cycle thereby forming an effective respiratory seal as the wearer inhale and release the respiratory seal as the wearer exhale, and a filtering mean (40) to filter inhaling air. A preferred embodiment includes the securing mean includes an elastic headband providing holding force (F) at a location substantially away from the periphery of the face-mask.
    Type: Application
    Filed: April 16, 2004
    Publication date: September 14, 2006
    Inventor: Wa Chu
  • Ironing board
    Patent number: D543671
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: May 29, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Francis Wa Chu
  • Ironing board
    Patent number: D543672
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: May 29, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Francis Wa Chu
  • Iron with steam generator
    Patent number: D581620
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: November 25, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Francis Wa Chu
  • Wireless ear-worn audio device
    Patent number: D383757
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: September 16, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Christoph Dobrusskin, Peter Verbeek, Bastiaan Pieter Verhoeven, Francis Wa Chu