Patents by Inventor Kenneth R. Seamons

Kenneth R. Seamons 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: 5468448
    Abstract: A method of disinfecting a hydrogen peroxide stable contact lens is provided wherein a contact lens is contacted with a hydrogen peroxide solution in a container and a hydrogen peroxide decomposition means is provided in said container, which means is adapted to permit the contact lens to have a cumulative (% peroxide) (min) exposure from the time said decomposition means contacts said peroxide containing solution, time zero, over a period of no greater than 12 hours of at least 20% peroxide.multidot.minute. An apparatus capable of carrying out such method is also provided herein. The hydrogen peroxide decomposition means may be, for example, a prepoisoned catalyst, a catalyst partially enclosed in a tube, a dual catalyst control system or a distributed catalyst control system.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: November 21, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul C. Nicolson, Kenneth R. Seamons, Fu-Pao Tsao, Larry A. Alvord, Earl C. McCraw, Jr.
  • Patent number: 5306352
    Abstract: A method of disinfecting a hydrogen peroxide stable material by contacting said material with a hydrogen peroxide containing solution and a hydrogen peroxide decomposition means adapted to permit said material to have a cumulative (% peroxide).multidot.(min) exposure from the time said decomposition means contacts said hydrogen peroxide containing solution over a period not exceeding 12 hours of at least 20% (peroxide).multidot.(min). Also, disclosed are devices and components thereof whereby said method can be achieved.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: April 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Nicolson, Kenneth R. Seamons, Fu-Pao Tsao, Larry A. Alvord, Earl C. McCraw
  • Patent number: 5078798
    Abstract: A method of carrying out a reaction in a solution catalytically comprising contacting a solid catalytically active material and a solution in which a catalytic reaction is to be carried out wherein the catalytic reaction yields a gas which adheres to the catalyst particles such that as the reaction is substantially complete in the immediate environment of the catalyst, the catalyst migrates to a reactant richer portion.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: January 7, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Nicolson, Kenneth R. Seamons, Fu-Pao Tsao
  • Patent number: 5059402
    Abstract: A contact lens disinfection unit constituted by a container, a cap detachably mounted on the container, and a lens and catalyst block holder mounted on and depending from the cap and extending into the container when the cap is mounted on the container. The holder engages a pair of contact lens for holding the contact lenses with the surfaces thereof exposed to the space around the holder, and has structure for holding catalyst block on the holder in a position for circulation of a disinfectant solution, from the space around the holder over the catalyst block. The catalyst block can be detachably held so that it can be replaced when the catalyst is depleted.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: October 22, 1991
    Inventors: Kenneth R. Seamons, Peter J. Gillespie
  • Patent number: 5053208
    Abstract: A contact lens disinfecting kit having an open topped lens container, an elongated piercer mounted in the lens container in an upright position and having piercing portions thereon projecting to the vicinity of the open top of the lens container, the piercer dividing the interior of the lens container into two separate contact lens receiving parts, and an open topped solution container attached to the lens container for being foldable over against the lens container with the open top thereof facing the open top of the lens container and having a shape with a peripheral edge around the open top thereof which fits snugly into the open top of the lens container. A sterilizing or disinfecting solution is contained in the solution container, and a pierceable cover is sealed to the edge of the solution container around the open top thereof, the piercer projecting sufficiently toward the solution container when the solution container is folded over against the lens container to pierce the pierceable cover.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: October 1, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Kenneth R. Seamons, Stephen D. Prestwood, Herbert L. Balcome
  • Patent number: D317359
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: June 4, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Kenneth R. Seamons, Peter J. Gillespie