Patents by Inventor John E. Field, Jr.

John E. Field, Jr. 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).

  • Mechanical climbing aid of the cam type
    Patent number: 7802770
    Abstract: A climbing cam having opposed asymmetrically sized cam members to eliminate the interference that limits the expansion range of climbing aids of the cam type. An optional cam member provides an opposing force to assist in maintaining the placement of the cam in the rock.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: September 28, 2010
    Assignee: Metolius Mountain Products, Inc.
    Inventor: John E. Field, Jr.
  • Mechanical Climbing Aid of the Cam Type
    Publication number: 20100207002
    Abstract: A climbing cam having opposed asymmetrically sized cam members to eliminate the interference that limits the expansion range of climbing aids of the cam type. An optional cam member provides an opposing force to assist in maintaining the placement of the cam in the rock.
    Type: Application
    Filed: April 26, 2010
    Publication date: August 19, 2010
    Applicant: Metolius Mountain Products, Inc.
    Inventor: John E. Field, JR.
  • Mechanical climbing aid of the cam type
    Patent number: 7740223
    Abstract: A climbing cam having opposed asymmetrically sized cam members to eliminate the interference that limits the expansion range of climbing aids of the cam type. An optional cam member provides an opposing force to assist in maintaining the placement of the cam in the rock.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: June 22, 2010
    Assignee: Metolius Mountain Products, Inc.
    Inventor: John E. Field, Jr.
  • Mechanical Climbing Aid of the Cam Type
    Publication number: 20090152421
    Abstract: A climbing cam having opposed asymmetrically sized cam members to eliminate the interference that limits the expansion range of climbing aids of the cam type. An optional cam member provides an opposing force to assist in maintaining the placement of the cam in the rock.
    Type: Application
    Filed: January 29, 2009
    Publication date: June 18, 2009
    Applicant: Metolius Mountain Products, Inc.
    Inventor: John E. Field, JR.