Patents by Inventor Chang-Hsien Ho

Chang-Hsien Ho 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: 20030140400
    Abstract: Integral complex buffing structure of safety helmet, including a casing, a lining body and a buffing body integrally sandwiched between the casing and the lining body. The casing is made of a hard plastic material. The lining body is connected on inner face of the casing and made of hardened foam material with high density. The buffing body is made of soft shock-absorbent material with low density. The buffing body is able to fully distribute the external concentrated impact to larger area of respective layers so as to reduce the linearly transmitted inertial impact. After the impact energy is fully spread, the instantaneous deformation of the casing and the lining body is reduced, whereby the respective layers of the helmet can naturally automatically restore to their original state and position and thus the helmet is excellently anti-impact with respect to many times of or continuous impact at one point.
    Type: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Inventor: Chang-Hsien Ho
  • Patent number: 6446271
    Abstract: Auxiliary buffer envelope device for inner pad of safety helmet, including at least one attachable buffer envelope disposed on a section of the inner pad near the rear bottom edge thereof. The buffer envelope is filled in the gap between the rear side of the inner pad and the curve of the rear lower dented part of a user's skull. The buffer envelope enables a user to more snugly wear the helmet with better fixing and shakeproof effect. The buffer envelope reversely retain rear dented part of, the user's skull so as to more reliably prevent the helmet from detaching from the skull and provide a fixing and protective effect for the head of the user. The buffer envelope has simple structure and can be easily connected with the helmet.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: September 10, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D445219
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 17, 2001
    Inventor: Chang-Hsien Ho
  • Patent number: D445544
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: July 24, 2001
    Inventor: Chang-Hsien Ho
  • Patent number: D445545
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: July 24, 2001
    Inventor: Chang-Hsien Ho
  • Patent number: D447287
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: August 28, 2001
    Inventor: Chang-Hsien Ho
  • Patent number: D447288
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: August 28, 2001
    Inventor: Chang-Hsien Ho
  • Patent number: D452940
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: January 8, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D452941
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: January 8, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D452942
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: January 8, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D453590
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: February 12, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D453975
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: February 26, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D455869
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: April 16, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D456567
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: April 30, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D464468
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: October 15, 2002
    Inventor: Chang-Hsien Ho
  • Patent number: D481171
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: October 21, 2003
    Inventor: Chang-Hsien Ho
  • Patent number: D481172
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: October 21, 2003
    Inventor: Chang-Hsien Ho
  • Patent number: D481494
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: October 28, 2003
    Inventor: Chang-Hsien Ho
  • Patent number: D482500
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 18, 2003
    Inventor: Chang-Hsien Ho
  • Patent number: D482501
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 18, 2003
    Inventor: Chang-Hsien Ho