Patents by Inventor Kenneth Larson

Kenneth Larson 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: 6423338
    Abstract: The present invention relates to pharmaceutical compositions for the sustained release of pharmacologically active compounds, and methods of their manufacture and use. The pharmaceutical compositions contain microcrystals of pharmacologically active compounds which are encapsulated within a phospholipid layer which contain a unique combination of phospholipids. The pharmaceutical compositions may be rendered suitable for injection. The microcrystals are of varying sizes. At least 50 percent of the microcrystals are from 0.5 &mgr;m and 3.0 &mgr;m in diameter, at least ten percent of the microcrystals are from 3.0 &mgr;m to 10 &mgr;m in diameter, and the composition may contain microcrystals which are greater than 10 &mgr;m in diameter. Methods of manufacturing the composition are disclosed, as well as various methods of administration.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: July 23, 2002
    Assignee: IDEXX Pharmaceuticals, Inc.
    Inventors: Kenneth A. Larson, William R. Campbell, Douglas I. Hepler
  • Patent number: 6375609
    Abstract: An in vivo source of mechanical energy is provided in close proximity to its load. In the disclosed embodiments, the mechanical energy source is a miniaturized motor (“micromotor”) and the load is a miniaturized perfusion pump located at the distal end of a transluminal catheter. The motor is powerful enough to provide the electrical energy needed by the perfusion pump to fluid, and yet small enough to fit inside a body vessel. A position sensor may be provided for automatically controlling the motor's driving current so that it is corresponds to the applied load. An embodiment of the perfusion pump is also provided in which an external energy source is used. Another embodiment is provided wherein a balloon/pump/miniaturized-motor configuration is provided on a distal end of a catheter.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: April 23, 2002
    Assignee: Scimed Life Systems, Inc.
    Inventors: Roger Hastings, Kenneth Larson, Michael Berman, Daniel M. Lafontaine
  • Patent number: 6180136
    Abstract: The present invention relates to pharmaceutical compositions for the sustained release of pharmacologically active compounds and methods of their manufacture and use. Sustained release times of 10-12 days have been achieved with the present invention. The present invention provides microcrystal compositions. The microcrystals comprise pharmacologically active compounds and are contained within a phospholipid layer which contains a unique combination of phospholipids. The present invention may be applied to a wide range of pharmaceutical compositions which may be rendered suitable for injection. The microcrystals are of varying sizes. At least 50 percent of the microcrystals are from 0.5 &mgr;m to about 3.0 &mgr;m in diameter, at least ten percent of the microcrystals are from about 3.0 &mgr;m to about 10 &mgr;m in diameter, and the composition contains microcrystals which are greater than 10 &mgr;m in diameter.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: January 30, 2001
    Assignee: Idexx Laboratories, Inc.
    Inventors: Kenneth A. Larson, William R. Campbell, Douglas I. Hepler
  • Patent number: 6089235
    Abstract: An in vivo source of mechanical energy is provided in close proximity to its load. In the disclosed embodiments, the mechanical energy source is a miniaturized motor ("micromotor") and the load is a miniaturized perfusion pump located at the distal end of a transluminal catheter. The motor is powerful enough to provide the electrical energy needed by the perfusion pump to fluid, and yet small enough to fit inside a body vessel. A position sensor may be provided for automatically controlling the motor's driving current so that it is corresponds to the applied load. An embodiment of the perfusion pump is also provided in which an external energy source is used. Another embodiment is provided wherein a balloon/pump/miniaturized-motor configuration is provided on a distal end of a catheter.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: July 18, 2000
    Assignee: Scimed Life Systems, Inc.
    Inventors: Roger Hastings, Kenneth Larson, Michael Berman, Daniel M Lafontaine
  • Patent number: 5823199
    Abstract: An in vivo source of mechanical energy is provided in close proximity to its load. In the disclosed embodiments, the mechanical energy source is a miniaturized motor ("micromotor") and the load is a miniaturized perfusion pump located at the distal end of a transluminal catheter. The motor is powerful enough to provide the electrical energy needed by the perfusion pump to fluid, and yet small enough to fit inside a body vessel. A position sensor may be provided for automatically controlling the motor's driving current so that it is corresponds to the applied load. An embodiment of the perfusion pump is also provided in which an external energy source is used. Another embodiment is provided wherein a balloon/pump/miniaturized-motor configuration is provided on a distal end of a catheter.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: October 20, 1998
    Assignee: SciMed Life Systems, Inc.
    Inventors: Roger Hastings, Kenneth Larson, Michael Berman, Daniel M. Lafontaine
  • Patent number: 5628719
    Abstract: An in vivo source of mechanical energy is provided in close proximity to its load. In the disclosed embodiments, the mechanical energy source is a miniaturized motor ("micromotor") and the load is a miniaturized perfusion pump located at the distal end of a transluminal catheter. The motor is powerful enough to provide the electrical energy needed by the perfusion pump to fluid, and yet small enough to fit inside a body vessel. A position sensor may be provided for automatically controlling the motor's driving current so that it is corresponds to the applied load. An embodiment of the perfusion pump is also provided in which an external energy source is used. Another embodiment is provided wherein a balloon/pump/miniaturized-motor configuration is provided on a distal end of a catheter.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: May 13, 1997
    Assignee: Scimed Life Systems, Inc.
    Inventors: Roger Hastings, Kenneth Larson, Michael Berman, Daniel M. Lafontaine
  • Patent number: 4097607
    Abstract: An animal deterrent composition comprises cinnamic aldehyde as the active ingredient in a diluent vehicle. Capsaicin may be included as an additional active ingredient.The composition is applied to various objects to deter attack or close approach by animals. Examples of the objects are wooden animal stalls, so as to prevent "cribbing, " bandages and plaster casts on animals to deter chewing thereof and sheep collars or sheep's wool, so as to repel predators, or in farm sheds to repel porcupines.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: June 27, 1978
    Inventor: Kenneth A. Larson