Patents by Inventor Ihsan B. RACHMAN

Ihsan B. RACHMAN 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).

  • Crosslinked polymer resin for contaminant adsorption from water
    Patent number: 10889688
    Abstract: Cross-linked polymer resins and related salts, solvates, tautomers or stereoisomers are described herein. The cross-linked polymer resins may comprise monomer units of N,N-diallyl aminoalkylphosphonate, a hydrophobic pendant, a tetraallylpiperazinium cross-linker, and sulfur dioxide. A method for producing the cross-linked polymer resins is described. The cross-linked polymer resins may be used as adsorbent materials for the removal of heavy metal ions and contaminant dyes from aqueous solutions. Used cross-linked polymer resins may be removed from solution, cleaned, and reused while maintaining adsorption capacity.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: January 12, 2021
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Tawfik Abdo Saleh Awadh, Shaikh A. Ali, Ihsan B. Rachman
  • CROSSLINKED POLYMER RESIN FOR CONTAMINANT ADSORPTION FROM WATER
    Publication number: 20190375895
    Abstract: Cross-linked polymer resins and related salts, solvates, tautomers or stereoisomers are described herein. The cross-linked polymer resins may comprise monomer units of N,N-diallyl aminoalkylphosphonate, a hydrophobic pendant, a tetraallylpiperazinium cross-linker, and sulfur dioxide. A method for producing the cross-linked polymer resins is described. The cross-linked polymer resins may be used as adsorbent materials for the removal of heavy metal ions and contaminant dyes from aqueous solutions. Used cross-linked polymer resins may be removed from solution, cleaned, and reused while maintaining adsorption capacity.
    Type: Application
    Filed: June 6, 2018
    Publication date: December 12, 2019
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Tawfik Abdo Saleh AWADH, Shaikh A. ALI, Ihsan B. RACHMAN