Patents by Inventor James E. Kiefer

James E. Kiefer 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 wearable flotation device
    Patent number: 4097947
    Abstract: An inflatable wearable flotation device having flotation material in front and back panels and an inflatable bladder having sections located at said front panels and a collar section positioned over said back panel comprising a bladder section, and fastener means for maintaining said bladder sections flat when fastened and being unfastened by expansion of the bladder sections to permit inflation of the bladder.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: July 4, 1978
    Assignee: SoniForm Incorporated
    Inventor: James E. Kiefer
  • Flotation hiking harness
    Patent number: 4047255
    Abstract: A flotation hiking harness having back, side and crotch sections attached to a central buckle and having a shoulder section over the shoulder blades and front sections over the chest which terminate short of the bend line at the waist, the front and shoulder sections providing buoyancy and the front sections being fastened to the central buckle to assist in firmly securing the wearer to a tie line.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: September 13, 1977
    Inventor: James E. Kiefer
  • Water ski binding
    Patent number: 3992738
    Abstract: A water ski binding having a foot piece and a heel piece which is attached to a mounting plate slidable along the water ski, the mounting plate consisting of a support member for the heel piece and separate latch members connected to the support member and having latch teeth which engage ratchet teeth on the guides for the mounting plate, the latching members being located rearwardly of the heel support member and being connected to the rear portion of the support member by springs located at the outside edges of the mounting plate.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: November 23, 1976
    Inventor: James E. Kiefer