Patents by Inventor J. S. Wang

J. S. Wang 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).

  • INFLATABLE MATTRESS
    Publication number: 20140041126
    Abstract: An inflatable mattress includes upper and lower air-impermeable layers, upper and lower linings that are respectively attached to the upper and lower air-impermeable layers, and a plurality of threads each of which has two ends respectively stitched to the upper and lower linings so as to permit each of the upper and lower air-impermeable layers to provide a substantially flat surface for supporting a user' s body.
    Type: Application
    Filed: February 11, 2013
    Publication date: February 13, 2014
    Applicant: ONGPIN ENTERPRISES CO., LTD.
    Inventor: J. S. Wang
  • Drum
    Patent number: 5031499
    Abstract: A drum includes a hollow drum body, a drum skin frame supported by the walls of the hollow drum body, a drum skin stretched on the drum skin frame, and a drum head frame tightly clamping the peripheral; edges of the drum skin frame and the drum skin. A damping member, disposed between the drum head frame and the drum skin frame, absorbs the vibrations of the two drum frames and filters out the sound they produce whenever the drum skin is beaten.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: July 16, 1991
    Inventor: J. S. Wang