Patents by Inventor Leonid A. Kaledin

Leonid A. Kaledin 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).

  • Patent number: 9707538
    Abstract: A reaction product of silicious material, aluminum metal, and an aqueous solution is disclosed. The reaction product may be used to form a sorbent that is used to purify water of contaminants such as biological matter, dyes, soluble metals, arsenic, or radioactive elements. Additives may be added to the reaction product to further improve the sorption qualities of the sorbent. Water purification devices having the sorbent are also disclosed.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: July 18, 2017
    Assignee: ARGONIDE CORPORATION
    Inventors: Leonid A. Kaledin, Frederick Tepper, Tatiana G. Kaledin
  • Publication number: 20160175807
    Abstract: A reaction product of silicious material, aluminum metal, and an aqueous solution is disclosed. The reaction product may be used to form a sorbent that is used to purify water of contaminants such as biological matter, dyes, soluble metals, arsenic, or radioactive elements. Additives may be added to the reaction product to further improve the sorption qualities of the sorbent. Water purification devices having the sorbent are also disclosed.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 23, 2016
    Inventors: Leonid A. Kaledin, Frederick Tepper, Tatiana G. Kaledin
  • Patent number: 9309131
    Abstract: A reaction product of silicious material, aluminum metal, and an aqueous solution is disclosed. The reaction product may be used to form a sorbent that is used to purify water of contaminants such as biological matter, dyes, soluble metals, arsenic, or radioactive elements. Additives may be added to the reaction product to further improve the sorption qualities of the sorbent. Water purification devices having the sorbent are also disclosed.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 12, 2016
    Assignee: Argonide Corporation
    Inventors: Leonid A. Kaledin, Frederick Tepper, Tatiana G. Kaledin
  • Publication number: 20140001123
    Abstract: A reaction product of silicious material, aluminum metal, and an aqueous solution is disclosed. The reaction product may be used to form a sorbent that is used to purify water of contaminants such as biological matter, dyes, soluble metals, arsenic, or radioactive elements. Additives may be added to the reaction product to further improve the sorption qualities of the sorbent. Water purification devices having the sorbent are also disclosed.
    Type: Application
    Filed: June 10, 2013
    Publication date: January 2, 2014
    Inventors: Leonid A. Kaledin, Frederick Tepper, Tatiana G. Kaledin
  • Publication number: 20090308811
    Abstract: A chromatography device and method of use to separate components of a sample are described. The device includes a stationary phase supported by a frame or contained within a chamber in a housing. The stationary phase includes a nano alumina medium that has support fibers having nano alumina fibers attached thereto. Optionally, sorbents are electrostatically adhered to the nano alumina fibers. Chromatographic separations are effected by the mobile phase at pressures of less than 10 bar and at flow velocities up to at least 5 cm/min. An electrical potential can be applied across the medium to foster separation of components.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 17, 2009
    Applicant: Argonide Corporation
    Inventors: Frederick Tepper, Leonid A. Kaledin, Tatiana Kaledin
  • Patent number: 7390343
    Abstract: The invention is a device for purifying drinking water that has at least one fibrous structure. Preferably, there is an upstream and downstream fibrous structure. Each fibrous structure is a mixture of nano alumina fibers and second fibers arranged in a matrix to create asymmetric pores and to which fine, ultrafine, or nanosize particles are attached. Preferably, the device has an upstream antimicrobial for sterilization of retained microbes. The device is substantially more efficient at removing soluble contaminants such as halogens from a fluid stream than those previously available and is also able to retain turbidity, bacteria, and virus.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: June 24, 2008
    Assignee: Argonide Corporation
    Inventors: Frederick Tepper, Leonid A. Kaledin
  • Patent number: 7311752
    Abstract: The invention is a filter for gaseous media in which nano alumina fibers and second fibers are arranged in a matrix to create asymmetrical pores. The filter is a high efficiency, high capacity particulate filter that intercepts pathogens and other particulate matter from gaseous media, including vapor-suspended particles. The new filter has an improved retention of water-aerosolized particles as compared to conventional HEPA filters and may be used as a pre-filter that extends the life of HEPA filters by about five to ten times. The invention is also a method of manufacturing and using the filter.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: December 25, 2007
    Assignee: Argonide Corporation
    Inventors: Frederick Tepper, Leonid A. Kaledin
  • Patent number: 6291025
    Abstract: A process of coating substrates with metal by immersing them into solutions of inorganic compounds in non-aqueous organic liquids. The solution preferably contains two components—a polar organic liquid such as an alcohol, polyol or ketone containing a metal salt in solution. The substrate may be a metal such as steel or aluminum, or a dielectric such as plastic or ceramic, which has been activated by the deposition of colloidal metallic particulates to form a seed metallic layer. The preferred embodiment involves immersion of a metal substrate at room temperature into a simple alcohol such as methanol, containing a salt such as copper chloride. Metal deposits onto the substrate at rates many times greater than aqueous electroless processes. The substrate may be immersed into active solution in a bath, or a paste of the organic and the salt may be formed and painted onto the substrate. In either case, spontaneous deposition occurs on the metal or pre-activated dielectric substrate.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: September 18, 2001
    Assignee: Argonide Corporation
    Inventors: Frederick Tepper, Leonid A. Kaledin, Anatoliy Ugryumov