Patents by Inventor Robert J. Nelson

Robert J. Nelson 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).

  • IMMUNE RESPONSE MODIFIER FORMULATIONS CONTAINING OLEIC ACID AND METHODS
    Publication number: 20120237551
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Application
    Filed: October 24, 2011
    Publication date: September 20, 2012
    Applicant: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Bang-bang controller and control method for variable speed wind turbines during abnormal frequency conditions
    Patent number: 8219256
    Abstract: A wind farm (10) may include a plurality of variable speed wind turbines (12, 14, 16). A centralized controller (50) may be configured to selectively adjust a respective electrical output power from each of the wind turbines at least during an underfrequency condition. The controller may include a monitor (52) configured to monitor a grid frequency value relative to at least a first threshold value. A deviation of the grid frequency value beyond the first threshold value is indicative of the underfrequency condition. The controller further includes a control unit (54) configured to effect a step response to the electrical output power of the wind turbine in a direction selected to counteract the underfrequency condition.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: July 10, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Robert J. Nelson, John D. Amos, Hongtao Ma
  • METHOD AND APPARATUS FOR MINIMIZING HARMONIC CURRENTS IN A WIND TURBINE PARK
    Publication number: 20120019007
    Abstract: A collector system (49) for supplying electrical energy to a grid (50). The collector system (49) comprises a plurality of voltage sources (46/48/66/68) each producing a fundamental frequency current and a plurality of harmonic frequency currents related to the fundamental frequency, wherein one or more of the plurality of fundamental frequency currents have a time displacement relative to a current on the collector system (49), each one of the plurality of voltage sources (46/48/66/68) connected to the collector system (49) through a transformer (51/52/70), certain ones of the transformers (51/52/70) imparting a phase angle shift to compensate for the time displacement of the fundamental frequency current produced by each voltage source (46/48/66/68), and wherein the time displacement and the phase angle shifts are selected to reduce harmonic currents on the collector system (49).
    Type: Application
    Filed: July 21, 2010
    Publication date: January 26, 2012
    Inventors: Robert J. Nelson, Hongtao Ma
  • Immune response modifier formulations containing oleic acid and methods
    Patent number: 8080560
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: December 20, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Rotor winding shield for a superconducting electric generator
    Patent number: 7999433
    Abstract: A generator rotor core (54) carrying superconducting windings (60) and having a shield (426) over the superconducting windings (60) to prevent external magnetic fields from impinging the windings. Axial shield edges (430/434) mate with corresponding features of the rotor core (54) or with structures affixed to or supported by the core (54) to support the shield (426).
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: August 16, 2011
    Assignee: Siemens Energy, Inc.
    Inventors: Jiping Zhang, Robert J. Nelson, Peter J. Clayton, William R. McCown
  • Power Oscillation Damping Employing a Full or Partial Conversion Wind Turbine
    Publication number: 20110109085
    Abstract: A wind turbine (8) for controlling power oscillations on a grid of a power system (28). The wind turbine (8) comprises rotor blades (12) for turning by the wind, an electric generator (20) rotatably coupled to the rotor blades (12), a power converter (24) responsive to electricity generated by the electric generator (20), the power converter (24) for converting the generated electricity to a frequency and voltage suitable for supply to the power grid (28), and the power converter for regulating voltage on the grid supplemented by modulating real power for damping the power oscillations.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Inventor: Robert J. Nelson
  • Method of preparing a pharmaceutical cream and minimizing imiquimod impurity formation
    Patent number: 7939555
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: May 10, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Reduction of imiquimod impurities in pharmaceutical creams
    Patent number: 7928118
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: April 19, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of treating actinic keratosis
    Patent number: 7928116
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: April 19, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of inducing cytokine biosynthesis
    Patent number: 7928117
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 31, 2010
    Date of Patent: April 19, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Methods for stabilizing imiquimod for two months, four months, and six months
    Patent number: 7923463
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: April 12, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of controlling formation of imiquimod impurities
    Patent number: 7919501
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 30, 2010
    Date of Patent: April 5, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of treating genital or peri-anal warts
    Patent number: 7915277
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 30, 2010
    Date of Patent: March 29, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of treating basal cell carcinoma
    Patent number: 7915278
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 30, 2010
    Date of Patent: March 29, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of treating mollescum contagiosum
    Patent number: 7915279
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 31, 2010
    Date of Patent: March 29, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of treating a dermal and/or mucosal associated condition
    Patent number: 7906526
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Reduction of imiquimod impurities at four months using refined oleic acid
    Patent number: 7906525
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Method of reducing imiquimod impurity formation
    Patent number: 7906543
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: March 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Pharmaceutical cream having similar or less levels of imiquimod impurity formation as cream with BHA (comparator)
    Patent number: 7906524
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson
  • Reduction of imiquimod impurities using refined oleic acid
    Patent number: 7906527
    Abstract: Pharmaceutical formulations and methods including an immune response modifier (IRM) compound and an oleic acid component are provided where stability is improved by using oleic acid have low polar impurities such as peroxides.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Alexis S. Statham, Robert J. Nelson