Patents by Inventor Keith K. Wong

Keith K. Wong 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: 8714292
    Abstract: A motorized wheeled chair assembly facilitates movement by a person while seated on a chair. The assembly includes a frame and a plurality of wheels coupled to the frame. A seat and a motor are coupled to the frame. The motor is operationally coupled to one of the wheels defining a motorized wheel wherein the motor rotates the motorized wheel. A handle is coupled to the frame by an arm having a first end coupled to the handle and a second end removably coupled to the frame. A motor control is coupled to the handle and operationally coupled to the motor.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: May 6, 2014
    Inventor: Keith K. Wong
  • Patent number: 8288828
    Abstract: A via contact is provided to a diffusion region at a top surface of a substrate which includes a single-crystal semiconductor region. The via contact includes a first layer which consists essentially of a silicide of a first metal in contact with the diffusion region at the top surface. A dielectric region overlies the first layer, the dielectric region having an outer surface and an opening extending from the outer surface to the top surface of the substrate. A second layer lines the opening and contacts the top surface of the substrate in the opening, the second layer including a second metal which lines a sidewall of the opening and a silicide of the second metal which is self-aligned to the top surface of the substrate in the opening. A diffusion barrier layer overlies the second layer within the opening. A third layer including a third metal overlies the diffusion barrier layer and fills the opening.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: October 16, 2012
    Assignee: International Business Machines Corporation
    Inventors: Michael M. Iwatake, Kevin E. Mello, Matthew W. Oonk, Amanda L. Piper, Yun Y. Wang, Keith K. Wong
  • Patent number: 6816061
    Abstract: A communication system (10) uses commercial, mass market paging transmission facilities (16) to deliver messages (18′) to a population of reception devices (22). Each reception device (22) includes a display screen (48) at which lines (72) of national and local news and advertising, a banner advertising box (74) and a clock (76) are displayed. Line buttons (54′) are aligned with the displayed lines (72). The reception device (22) is configured so that a user may press a line button (54′) aligned with a particular line (72) scrolling on the display screen (48) to view additional details related to the subject matter of the particular line (72). Selected lines (72) include alert activating codes (42) which signal the reception device (22), when enabled, to activate an alert which attracts the user's attention to those selected lines (72).
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: November 9, 2004
    Inventor: Keith K. Wong
  • Patent number: 4920556
    Abstract: An improved telephone with three built in features that provide added conveniences and additional benefits for the user. These features are: Money Saver Timer, which tells the caller the amount of time is left of the current message or toll unit on a long distance call; Telephone Panic Switch, when pressed, will activate a circuit to automatically call and broadcast an emergency message to a group of pre-stored numbers; Music On Hold cards, which allow the user to play different music programs for the HOLD feature. These cards can be changed frequently to provide different music programs to the frequent caller.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: April 24, 1990
    Inventor: Keith K. Wong
  • Patent number: 4325943
    Abstract: This invention is directed to compounds of the formula ##STR1## wherein A and A.sub.1 are amino acid residues, X is an .alpha.-imino acid residue, and R.sub.1 is hydrogen, lower alkyl, or halo substituted lower alkyl. These compounds are useful as hypotensive agents.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: April 20, 1982
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Miguel A. Ondetti, Shih-jung Lan, Keith K. Wong
  • Patent number: 4325945
    Abstract: This invention is directed to compounds of the formula ##STR1## wherein A and A.sub.1 are amino acid residues, X is an .alpha.-imino acid residue, and R.sub.1 is hydrogen, lower alkyl, or halo substituted lower alkyl. These compounds are useful as hypotensive agents.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: April 20, 1982
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Miguel A. Ondetti, Shih-jung Lan, Keith K. Wong
  • Patent number: 4325944
    Abstract: This invention is directed to compounds of the formula ##STR1## wherein A and A.sub.1 are amino acid residues, X is an .alpha.-imino acid residue, and R.sub.1 is hydrogen, lower alkyl, or halo substituted lower alkyl. These compounds are useful as hypotensive agents.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: April 20, 1982
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Miguel A. Ondetti, Shih-jung Lan, Keith K. Wong
  • Patent number: 4284624
    Abstract: This invention is directed to compounds of the formula ##STR1## wherein A and A.sub.1 are amino acid residues, X is and .alpha.-imino acid residue, and R.sub.1 is hydrogen, lower alkyl, or halo substituted lower alkyl. These compounds are useful as hypotensive agents.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: August 18, 1981
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Miguel A. Ondetti, Shih-jung Lan, Keith K. Wong
  • Patent number: D505402
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: May 24, 2005
    Inventor: Keith K. Wong