Patents by Inventor Charles L. Dobbs

Charles L. Dobbs 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).

  • Fertilizer compositions and methods of making the same
    Patent number: 9718738
    Abstract: Fertilizer compositions are provided, where a fertilizer composition includes: an inner portion including a nitrogen containing material; and an outer portion covering the inner portion, the outer portion including a release agent (e.g. HTC, BR).
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: August 1, 2017
    Assignee: ALCOA USA CORP.
    Inventors: David F. Iwig, Raymond J. Kilmer, Charles L. Dobbs, Judodine Nichols, John R. Smith, Mark L. Weaver, Shannon L. I. Parks, Mikhail Gershenzon
  • FERTILIZER COMPOSITIONS AND METHODS OF MAKING THE SAME
    Publication number: 20150239790
    Abstract: Fertilizer compositions are provided, where a fertilizer composition includes: an inner portion including a nitrogen containing material; and an outer portion covering the inner portion, the outer portion including a release agent (e.g. HTC, BR).
    Type: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Inventors: David F. Iwig, Raymond J. Kilmer, Charles L. Dobbs, Judodine Nichols, John R. Smith, Mark L. Weaver, Shannon L. I. Parks, Mikhail Gershenzon
  • Detecting and estimating shorting phenomena in hall cells and control of cell anodes in response thereto
    Patent number: 4752362
    Abstract: A method of controlling interelectrode distance when a short occurs between an anode and the cathode metal pad of an electrolytic cell. Anode current data is provided by sampling anode current at a relatively high frequency, and noting any substantial instantaneous increase in current by observing the data over a period of time. Estimates of instantaneous losses in current efficiency over a base period of time due to the shorting are then made. Current efficiency losses are reduced by repositioning the anode via a command from a cell control computer to anode positioning means or by manual adjustment of the anodes in the cell.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: June 21, 1988
    Assignee: Aluminum Company of America
    Inventors: Vincent A. Petrelli, Charles L. Dobbs, Wayne W. Hyland, Allen J. Sharkins, Marwan Simaan, Harold A. Savage, Alan A. Ciukowski