Patents by Inventor Amir Al-Ahmed

Amir Al-Ahmed 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).

  • Europium based metal organic framework for palladium sensing
    Patent number: 11124529
    Abstract: A method of detecting Pd2+ in an aqueous solution is described. The method involves mixing an Eu-based metal organic framework with the aqueous solution and measuring the amount of fluorescence quenching. The fluorescence quenching is specific to Pd2+ and also allows a 44 ppb detection limit of Pd2+. The Eu-based metal organic framework may be treated with a metal chelator and reused for sensitive detection of Pd2+.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: September 21, 2021
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Aasif Helal, Zain Hassan Abdallah Yamani, Amir Al-Ahmed
  • EUROPIUM BASED METAL ORGANIC FRAMEWORK FOR PALLADIUM SENSING
    Publication number: 20210002304
    Abstract: A method of detecting Pd2+ in an aqueous solution is described. The method involves mixing an Eu-based metal organic framework with the aqueous solution and measuring the amount of fluorescence quenching. The fluorescence quenching is specific to Pd2+ and also allows a 44 ppb detection limit of Pd2+. The Eu-based metal organic framework may be treated with a metal chelator and reused for sensitive detection of Pd2+.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 7, 2021
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Aasif HELAL, Zain Hassan Abdallah YAMANI, Amir AL-AHMED
  • Hollow fiber membrane modified with molybdenum trioxide nanoparticles
    Patent number: 10843135
    Abstract: A hollow fiber (HF) membrane incorporating molybdenum trioxide (MoO3) nanoparticles. The membrane may be composed of PPSU hollow fibers that are coated or encrusted with MoO3 nanoparticles and can be made by dry-wet spinning. The hollow fiber membranes containing MoO3 nanoparticles remove lead, cadmium or other heave metals from waste water and are resistant to attachment of bacteria and fouling.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 24, 2020
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Amir Al-Ahmed, Arun M. Isloor
  • Use and regeneration of an adsorbent to remove dyes from water
    Patent number: 10508046
    Abstract: A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: December 17, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Amir Al-Ahmed, Arun M. Isloor
  • Forming and using an adsorbent to remove cationic dyes from water
    Patent number: 10399864
    Abstract: A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 3, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Amir Al-Ahmed, Arun M. Isloor
  • HOLLOW FIBER MEMBRANE MODIFIED WITH MOLYBDENUM TRIOXIDE NANOPARTICLES
    Publication number: 20190099719
    Abstract: A hollow fiber (HF) membrane incorporating molybdenum trioxide (MoO3) nanoparticles. The membrane may be composed of PPSU hollow fibers that are coated or encrusted with MoO3 nanoparticles and can be made by dry-wet spinning. The hollow fiber membranes containing MoO3 nanoparticles remove lead, cadmium or other heave metals from waste water and are resistant to attachment of bacteria and fouling.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 4, 2019
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Amir AL-AHMED, Arun M. ISLOOR
  • Mixed matrix membrane, a method of making thereof, and a method for gas separation
    Patent number: 10188981
    Abstract: A mixed matrix membrane which is porous and has a cross section resembling a sponge. The membrane includes nanoparticle fillers which are also porous. The membrane may be freestanding or supported on a substrate. Methods of making the membrane by spin casting or solvent casting are described. Methods of separating a gas/organic vapor using the membrane are described.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 29, 2019
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Bassem Al-Maythalony, Amir Al-Ahmed, Mohamed A. Habib
  • USE AND REGENERATION OF AN ADSORBENT TO REMOVE DYES FROM WATER
    Publication number: 20190002308
    Abstract: A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 3, 2019
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Amir AL-AHMED, Arun M. ISLOOR
  • MIXED MATRIX MEMBRANE, A METHOD OF MAKING THEREOF, AND A METHOD FOR GAS SEPARATION
    Publication number: 20180304193
    Abstract: A mixed matrix membrane which is porous and has a cross section resembling a sponge. The membrane includes nanoparticle fillers which are also porous. The membrane may be freestanding or supported on a substrate. Methods of making the membrane by spin casting or solvent casting are described. Methods of separating a gas/organic vapor using the membrane are described.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 25, 2018
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Bassem AL-MAYTHALONY, Amir AL-AHMED, Mohamed A. HABIB
  • FORMING AND USING AN ADSORBENT TO REMOVE CATIONIC DYES FROM WATER
    Publication number: 20180305225
    Abstract: A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 25, 2018
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Amir AL-AHMED, Arun M. ISLOOR
  • Method for removing cationic dyes from an aqueous solution using an adsorbent
    Patent number: 10046985
    Abstract: A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 14, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Amir Al-Ahmed, Arun M. Isloor
  • Method of N-formylating amines with a phosphonic anhydride
    Patent number: 9862675
    Abstract: A method for N-formylating an amine that includes reacting the amine and a formamide compound in the presence of a phosphonic anhydride to form an N-formylated amine. The phosphonic anhydride is present in an amount of 5-100 mol % relative to a total number of moles of the amine, and the reacting is performed for 1-24 hours at a temperature of 45-100° C.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: January 9, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Amir Al-Ahmed, Arun M. Isloor
  • METHOD FOR REMOVING CATIONIC DYES FROM AN AQUEOUS SOLUTION USING AN ADSORBENT
    Publication number: 20170233265
    Abstract: A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.
    Type: Application
    Filed: February 11, 2016
    Publication date: August 17, 2017
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Amir Al-Ahmed, Arun M. Isloor