Patents by Inventor Henry Campbell King

Henry Campbell King 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).

  • Thread protector
    Patent number: 6367508
    Abstract: A thread protector for protecting threads on the end of a pipe includes a base portion, a threaded portion extending axially from a first end of the base portion and threadably engageable with the pipe and an elongated annular bumper extending axially from a second end of the base portion. The elongated bumper has an average length and width such that the ratio of the length to the width is at least 2. The base and elongated bumper have a total length of at least two inches.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: April 9, 2002
    Assignee: Drilltec Patents & Technologies Company, Inc.
    Inventors: Darrell R. Richards, Colin Rush, William Thornton, Henry Campbell King, Vincent Danko Grbic, Edgar Von Rosenberg
  • Thread protector
    Patent number: 6196270
    Abstract: A thread protector for protecting threads on the end of a pipe includes a base portion, a threaded portion extending axially from a first end of the base portion and threadably engageable with the pipe and an elongated annular bumper extending axially from a second end of the base portion. The elongated bumper has an average length and width such that the ratio of the length to the width is at least 2. The base and elongated bumper have a total length of at least two inches.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: March 6, 2001
    Assignee: Drilltec Patents & Technologies Company, Inc.
    Inventors: Darrell R. Richards, Colin Rush, William Thornton, Henry Campbell King, Vincent Danko Grbic, Edgar Von Rosenberg