Patents by Inventor Hani Gnayem

Hani Gnayem 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).

  • PHOTOCATALYTIC AIR PURIFICATION AND DISINFECTION COMPOSITION AND SYSTEM
    Publication number: 20230051381
    Abstract: A combination of bismuth oxyhalides is provided, which is a photooxidant, antibacterial and antiviral. The combination of bismuth oxyhalides is added to a filter medium (e.g., a multistage filter) to decompose VOCs and/or eliminate bacteria and/or viruses. Suitable designs of multistage filters are also provided.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 16, 2023
    Inventor: Hani GNAYEM
  • Photocatalysts based on bismuth oxyhalide, process for their preparation and uses thereof
    Patent number: 11319227
    Abstract: The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi(0). The use of Bi(0)doped-bismuth oxyhalide as photocatalysts in water purification is also described.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: May 3, 2022
    Assignee: Yissum Research Development Company of The Hebrew University of Jerusalem Ltd.
    Inventors: Yoel Sasson, Hani Gnayem
  • PHOTOCATALYSTS BASED ON BISMUTH OXYHALIDE, PROCESS FOR THEIR PREPARATION AND USES THEREOF
    Publication number: 20200299161
    Abstract: The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi(0). The use of Bi(0)doped-bismuth oxyhalide as photocatalysts in water purification is also described.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Yoel Sasson, Hani Gnayem
  • Photocatalysts based on bismuth oxyhalide, process for their preparation and uses thereof
    Patent number: 10717664
    Abstract: The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi(0). The use of Bi(0) doped bismuth oxyhalide as photocatalysts in water purification is also described.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: July 21, 2020
    Assignee: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
    Inventors: Yoel Sasson, Hani Gnayem
  • Additive-incorporated building materials
    Patent number: 10315953
    Abstract: Bismuth oxyhalide-added building materials are disclosed. The building material is a binder-containing building material, which sets and harden when mixed with water, such as gypsum and cement-based building material. Methods for applying bismuth oxyhalide—comprising coatings onto surfaces of building materials, to protect them against pollutants, are described.
    Type: Grant
    Filed: February 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Yissum Research Development Company of The Hebrew University of Jerusalem Ltd
    Inventors: Yoel Sasson, Hani Gnayem
  • Bismuth oxyhalide compounds useful as photocatalysts
    Patent number: 9943833
    Abstract: Mixed chloride-bromide bismuth oxyhalide compounds, with the molar ratio chloride:bromide being equal to or greater than 1:1, in the form of microspheres exhibiting flower-like surface morphology, are disclosed. Processes for preparing the compounds, formulations of the compounds and a method for purifying water using said compounds are also disclosed.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 17, 2018
    Assignee: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
    Inventors: Hani Gnayem, Yoel Sasson, Sanaa Shenawi-Khalil
  • ADDITIVE-INCORPORATED BUILDING MATERIALS
    Publication number: 20180037502
    Abstract: Bismuth oxyhalide-added building materials are disclosed. The building material is a binder-containing building material, which sets and harden when mixed with water, such as gypsum and cement-based building material. Methods for applying bismuth oxyhalide—comprising coatings onto surfaces of building materials, to protect them against pollutants, are described.
    Type: Application
    Filed: February 7, 2016
    Publication date: February 8, 2018
    Inventors: Yoel SASSON, Hani GNAYEM
  • PHOTOCATALYSTS BASED ON BISMUTH OXYHALIDE, PROCESS FOR THEIR PREPARATION AND USES THEREOF
    Publication number: 20160167991
    Abstract: The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth B(0), The use of Bi(0) doped bismuth oxyhalide as photocatalysts in water purification is also described.
    Type: Application
    Filed: August 4, 2014
    Publication date: June 16, 2016
    Inventors: Yoel SASSON, Hani GNAYEM
  • BISMUTH OXYHALIDE COMPOUNDS USEFUL AS PHOTOCATALYSTS
    Publication number: 20130334145
    Abstract: Mixed chloride-bromide bismuth oxyhalide compounds, with the molar ratio chloride:bromide being equal to or greater than 1:1, in the form of microspheres exhibiting flower-like surface morphology, are disclosed. Processes for preparing the compounds, formulations of the compounds and a method for purifying water using said compounds are also disclosed.
    Type: Application
    Filed: November 16, 2011
    Publication date: December 19, 2013
    Applicant: Yissum Research Development Company of The Hebrew University of Jerusalem LTD.
    Inventors: Hani Gnayem, Yoel Sasson, Sanaa Shenawi-Khalil