Patents by Inventor Igor A. Vassiliev

Igor A. Vassiliev 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).

  • Apparatus for the purification of water and method therefor
    Patent number: 6090294
    Abstract: An apparatus and method for the purification of contaminated water whereby the contamination level of the wastewater is automatically monitored and treatment self-adjusted and continued until the desired level of purification is reached. Specifically, if upon treatment a pre-set purification level is not obtained a water recycle control means completely precludes the uptake of additional contaminated water and recycles wastewater within the apparatus until the desired level of purification is obtained.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: July 18, 2000
    Assignee: AJT & Associates, Inc.
    Inventors: Alfredo J. Teran, John R. Derrick, Jr., Nidal A. Samad, W. Todd Willoughby, Igor A. Vassiliev, Louis V. Mangiacapra, Carlos V. Diaz
  • Apparatus for the purification of water and method therefor
    Patent number: 5785864
    Abstract: An efficient, economical, portable, movable, and compact apparatus and method for treating a fluid with ozone comprising multiple pressurized contact columns which are arranged in a hybrid parallel and series column configuration, which utilizes a unique control system and piping arrangement to improve the efficiency of the mass transfer of ozone into the water and increase its solubility by increasing the contact time between the water phase and the gas phase.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: July 28, 1998
    Assignee: AJT & Associates, Inc.
    Inventors: Alfredo J. Teran, John R. Derrick, Jr., Nidal A. Samad, Igor A. Vassiliev, Carlos V. Diaz, W. Todd Willoughby, Louis V. Mangicapra
  • Apparatus for the purification of water
    Patent number: D420720
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: February 15, 2000
    Assignee: AJT & Associates
    Inventors: Alfredo J. Teran, John R. Derrick, Jr., Nidal A. Samad, W. Todd Willoughby, Igor A. Vassiliev, Louis V. Mangicarpa, Carlos V. Diaz
  • Apparatus for the purification of water
    Patent number: D424660
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: May 9, 2000
    Assignee: AJT & Associates, Inc.
    Inventors: Alfredo J. Teran, John R. Derrick, Jr., Nidal A. Samad, W. Todd Willoughby, Igor A. Vassiliev, Louis V. Mangicarpa, Carlos V. Diaz