Patents by Inventor Gary Roger Greene

Gary Roger Greene 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).

  • Microwave probe applicator for physical and chemical processes
    Patent number: 6294772
    Abstract: A microwave heating system is disclosed for enhancing physical and chemical processes. The system includes a microwave source, an antenna having a cable, a receiver for receiving microwaves generated by the source, with the receiver being connected to a first end of the cable, and a transmitter for transmitting microwaves generated by the source, and with the transmitter being connected to an opposite end of the cable. The system also includes a reaction vessel with the transmitter inside the reaction vessel; and a microwave shield surrounding the transmitter for preventing microwaves emitted from the transmitter from extending substantially beyond the reaction vessel.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: September 25, 2001
    Assignee: CEM Corporation
    Inventors: Gary Roger Greene, Lois B. Jassie, Edward Earl King, Michael J. Collins
  • Use of continuously variable power in microwave assisted chemistry
    Patent number: 6288379
    Abstract: A method of microwave assisted chemistry is disclosed in which power can be supplied more continuously at preferred power levels to more precisely control or moderate a chemical reaction. The method comprises measuring the duty cycle required to maintain a measured selected parameter of a sample at a predetermined set point while the sample is being exposed to microwave radiation at a first predetermined power level; and moderating the duty cycle and the applied microwave power to increase the on time of the duty cycle while applying power at a second predetermined power level that is sufficient to maintain the sample at the set point using the moderated duty cycle. A corresponding device for microwave assisted chemistry is also disclosed and comprises a cavity for receiving a sample, a waveguide connected to the cavity, a source of microwave radiation connected to the waveguide, and a switching power supply for driving the source of microwave radiation.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: September 11, 2001
    Assignee: CEM Corporation
    Inventors: Gary Roger Greene, David Allan Barclay
  • Microwave probe applicator for physical and chemical processes
    Patent number: 6175104
    Abstract: A microwave heating system is disclosed for enhancing physical and chemical processes. The system includes a microwave source, an antenna having a cable, a receiver for receiving microwaves generated by the source, with the receiver being connected to a first end of the cable, and a transmitter for transmitting microwaves generated by the source, and with the transmitter being connected to an opposite end of the cable. The system also includes a reaction vessel with the transmitter inside the reaction vessel; and a microwave shield surrounding the transmitter for preventing microwaves emitted from the transmitter from extending substantially beyond the reaction vessel.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: January 16, 2001
    Assignee: CEM Corporation
    Inventors: Gary Roger Greene, Lois B. Jassie, Edward Earl King, Michael J. Collins
  • Use of continuously variable power in microwave assisted chemistry
    Patent number: 6084226
    Abstract: A method of microwave assisted chemistry is disclosed in which power can be supplied more continuously at preferred power levels to more precisely control or moderate a chemical reaction. The method comprises measuring the duty cycle required to maintain a measured selected parameter of a sample at a predetermined set point while the sample is being exposed to microwave radiation at a first predetermined power level; and moderating the duty cycle and the applied microwave power to increase the on time of the duty cycle while applying power at a second predetermined power level that is sufficient to maintain the sample at the set point using the moderated duty cycle. A corresponding device for microwave assisted chemistry is also disclosed and comprises a cavity for receiving a sample, a waveguide connected to the cavity, a source of microwave radiation connected to the waveguide, and a switching power supply for driving the source of microwave radiation.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: July 4, 2000
    Assignee: CEM Corporation
    Inventors: Gary Roger Greene, David Allan Barclay