Patents by Inventor Douglas Greenwood

Douglas Greenwood 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).

  • Publication number: 20130230077
    Abstract: A system, method and apparatus for wireless communications are provided. In an exemplary embodiment, frequency components present in a short duration modulated complex pulse is used to represent data to be sent. In other embodiments, the complex pulse is created, modulated, then modified to have desirable frequency characteristics. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
    Type: Application
    Filed: December 20, 2012
    Publication date: September 5, 2013
    Applicant: Metropolitan Area Networks, Inc.
    Inventors: Douglas Greenwood, William J. Chastain
  • Patent number: 8345727
    Abstract: A system, method and apparatus for wireless communications are provided. In an exemplary embodiment, frequency components present in a short duration modulated complex pulse is used to represent data to be sent. In other embodiments, the complex pulse is created, modulated, then modified to have desirable frequency characteristics. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: January 1, 2013
    Assignee: Metropolitan Area Networks, Inc.
    Inventors: Douglas Greenwood, William J. Chastain
  • Publication number: 20090323776
    Abstract: A system, method and apparatus for wireless communications are provided. In an exemplary embodiment, frequency components present in a short duration modulated complex pulse is used to represent data to be sent. In other embodiments, the complex pulse is created, modulated, then modified to have desirable frequency characteristics. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
    Type: Application
    Filed: May 12, 2009
    Publication date: December 31, 2009
    Inventors: Douglas Greenwood, William J. Chastain
  • Patent number: 4251262
    Abstract: Novel 1-carbamoyl-1,2,4-triazoles, processes for their production, and herbicidal compositions and methods are described. The compounds are particularly useful for the pre-weed emergence control of the graminaccous weeds crabgrass, barnyard grass, yellow foxtail and Johnson grass.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: February 17, 1981
    Assignee: The Boots Company Limited
    Inventors: Robert F. Brookes, David H. Godson, Douglas Greenwood, Margaret Tulley, Stanley B. Wakerley
  • Patent number: 4221582
    Abstract: New compounds are described which are of value for regulating of plant growth, as well as compositions containing them and methods of using them, are described. The compounds have the formula: ##STR1## in which R.sup.1 and R.sup.2 are each alkyl, alkenyl, alkynyl, cycloalkyl or optionally substituted phenyl or together with the nitrogen atom to which they are attached from a heterocyclic ring, Y is alkyl, alkoxy or halo, n is 0 or an integer 1 to 3, R.sup.3 and R.sup.4 are each methyl or ethyl, and X is one equivalent of an anion.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: September 9, 1980
    Assignee: The Boots Company Limited
    Inventors: John F. Garrod, Douglas Greenwood, Leonard G. Copping, Robert F. Brookes
  • Patent number: 4148626
    Abstract: Novel 1-carbamoyl-1,2,4-triazoles, processes for their production, and herbicidal compositions and methods are described. The compounds are particularly useful for the pre-weed emergence control of the graminaceous weeds crabgrass, barnyard grass, yellow foxtail and Johnson grass.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: April 10, 1979
    Assignee: The Boots Company Limited
    Inventors: Robert F. Brookes, David H. Godson, Douglas Greenwood, Margaret Tulley, Stanley B. Wakerley
  • Patent number: 4087269
    Abstract: Novel 1-carbamoyl-1,2,4-triazoles, processes for their production, and herbicidal compositions and methods are described. The compounds are particularly useful for the pre-weed emergence control of the graminaceous weeds crabgrass, barnyard grass, yellow foxtail and Johnson grass.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: May 2, 1978
    Assignee: The Boots Company Limited
    Inventors: Robert Frederick Brookes, David Henry Godson, Douglas Greenwood, Margaret Tulley, Stanley Brice Wakerley
  • Patent number: 3952001
    Abstract: Novel 1-carbamoyl-1,2,4-triazoles, processes for their production, and herbicidal compositions and methods are described. The compounds are particularly useful for the pre-weed emergence control of the graminaceous weeds crabgrass, barnyard grass, yellow foxtail and Johnson grass.
    Type: Grant
    Filed: December 21, 1972
    Date of Patent: April 20, 1976
    Assignee: The Boots Company Limited
    Inventors: Robert Frederick Brookes, David Henry Godson, Douglas Greenwood, Margaret Tulley, Stanley Brice Wakerley