Patents by Inventor Othman AL-HAMOUZ
Othman AL-HAMOUZ 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).
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Patent number: 11851598Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: GrantFiled: May 27, 2022Date of Patent: December 26, 2023Assignee: King Fahd University of Petroleum and MineralsInventors: Ismail Abdulazeez, Othman Al-Hamouz, Abdulaziz Al-Saadi, Mazen Khaled
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Patent number: 11753590Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: GrantFiled: May 27, 2022Date of Patent: September 12, 2023Assignee: King Fahd University of Petroleum and MineralsInventors: Ismail Abdulazeez, Othman Al-Hamouz, Abdulaziz Al-Saadi, Mazen Khaled
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Publication number: 20220290051Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Applicant: King Fahd University of Petroleum and MineralsInventors: Ismail ABDULAZEEZ, Othman AL-HAMOUZ, Abdulaziz AL-SAADI, Mazen KHALED
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Publication number: 20220282157Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: ApplicationFiled: May 27, 2022Publication date: September 8, 2022Applicant: King Fahd University of Petroleum and MineralsInventors: Ismail ABDULAZEEZ, Othman AL-HAMOUZ, Abdulaziz AL-SAADI, Mazen KHALED
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Patent number: 11414764Abstract: A method of inhibiting corrosion of metal in contact with a corrosive medium in an oil or gas field environment, whereby a formulation containing a polyurea is introduced into the corrosive medium in contact with the metal, wherein the polyurea is formed from a polymerization reaction between a piperazine having at least two reactive amine groups and a diisocyanate. The polyurea is introduced into the corrosive medium at a concentration of 1 to 250 ppm.Type: GrantFiled: October 16, 2019Date of Patent: August 16, 2022Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen Khaled, Abdulaziz A. Al-Saadi, Ismail Abdulazeez, Othman Al-Hamouz
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Patent number: 11377595Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: GrantFiled: March 22, 2019Date of Patent: July 5, 2022Assignee: King Fahd University of Petroleum and MineralsInventors: Ismail Abdulazeez, Othman Al-Hamouz, Abdulaziz Al-Saadi, Mazen Khaled
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Patent number: 11236274Abstract: The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.Type: GrantFiled: April 17, 2018Date of Patent: February 1, 2022Assignee: King Fahd University of Petroleum and MineralsInventors: Othman Charles Sadeq Othman Al-Hamouz, Tawfik Abdo Saleh, Thomas Frederick Garrison, Michael Lee Fraim, Mohamed Abdel-Aziz Habib
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Publication number: 20210122984Abstract: The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.Type: ApplicationFiled: April 17, 2018Publication date: April 29, 2021Applicant: King Fahd University of Petroleum and MineralsInventors: Othman Charles Sadeq Othman AL-HAMOUZ, Tawfik Abdo SALEH, Thomas Frederick GARRISON, Michael Lee FRAIM, Mohamed Abdel-Aziz HABIB
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Publication number: 20210115570Abstract: A method of inhibiting corrosion of metal in contact with a corrosive medium in an oil or gas field environment, whereby a formulation containing a polyurea is introduced into the corrosive medium in contact with the metal, wherein the polyurea is formed from a polymerization reaction between a piperazine having at least two reactive amine groups and a diisocyanate. The polyurea is introduced into the corrosive medium at a concentration of 1 to 250 ppm.Type: ApplicationFiled: October 16, 2019Publication date: April 22, 2021Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mazen KHALED, Abdulaziz A. Al-Saadi, Ismail Abdulazeez, Othman Al-Hamouz
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Publication number: 20200299577Abstract: Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.Type: ApplicationFiled: March 22, 2019Publication date: September 24, 2020Applicant: King Fahd University of Petroleum and MineralsInventors: Ismail ABDULAZEEZ, Othman AL-HAMOUZ, Abdulaziz AL-SAADI, Mazen KHALED
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Patent number: 10487272Abstract: The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.Type: GrantFiled: May 30, 2019Date of Patent: November 26, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Othman Charles Sadeq Othman Al Hamouz, Tawfik Abdo Saleh, Thomas Garrison, Michael Fraim, Mohamad Abdel-Aziz Habib
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Publication number: 20190316043Abstract: The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.Type: ApplicationFiled: May 30, 2019Publication date: October 17, 2019Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Othman Charles Sadeq Othman AL-HAMOUZ, Tawfik Abdo Saleh, Thomas Garrison, Michael Fraim, Mohamad Abdel-Aziz Habib
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Patent number: 10364397Abstract: The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.Type: GrantFiled: July 17, 2017Date of Patent: July 30, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Othman Charles Sadeq Othman Al Hamouz, Tawfik Abdo Saleh, Thomas Garrison, Michael Fraim, Mohamed Abdel-Aziz Habib
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Publication number: 20180298290Abstract: The invention is directed to utilization of a series of cross-linked 1,4-benzenediamine-co-alkyldiamine polymers and the use of the polymers to remove mercury from a hydrocarbon in fluid form.Type: ApplicationFiled: July 17, 2017Publication date: October 18, 2018Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Othman Charles Sadeq Othman AL HAMOUZ, Tawfik Abdo SALEH, Thomas GARRISON, Michael FRAIM, Mohamed Abdel-Aziz HABIB
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Patent number: 9051197Abstract: The cross-linked polyaminodiphosphonate for the removal of metal ions from wastewater is a cross-linked anionic polyelectrolyte synthesized via cyclocopolymerization of diallylaminomethyldiphosphonic acid and 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %), a cross-linker, in the presence of tert-butylhydroperoxide in aqueous solution at 85° C., followed by treatment with NaOH. The cross-linked polyaminodiphosphonate may be used to remove copper and cadmium ions from wastewater. The adsorption process is spontaneous and endothermic in nature, with negative and positive values for ?G and ?H, respectively. The efficiency of Cu2+ and Cd2+ removal by the cross-linked polyaminodiphosphonate was found to be 96.8% and 93.8%, respectively.Type: GrantFiled: September 9, 2013Date of Patent: June 9, 2015Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Othman Charles Sadeq Othman Al Hamouz, Shaikh Asrof Ali
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Publication number: 20150073097Abstract: The cross-linked polyaminodiphosphonate for the removal of metal ions from wastewater is a cross-linked anionic polyelectrolyte synthesized via cyclocopolymerization of diallylaminomethyldiphosphonic acid and 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %), a cross-linker, in the presence of tert-butylhydroperoxide in aqueous solution at 85° C., followed by treatment with NaOH. The cross-linked polyaminodiphosphonate may be used to remove copper and cadmium ions from wastewater. The adsorption process is spontaneous and endothermic in nature, with negative and positive values for ?G and ?H, respectively. The efficiency of Cu2+ and Cd2+ removal by the cross-linked polyaminodiphosphonate was found to be 96.8% and 93.8%, respectively.Type: ApplicationFiled: September 9, 2013Publication date: March 12, 2015Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: OTHMAN CHARLES SADEQ OTHMAN AL HAMOUZ, SHAIKH ASROF ALI
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Patent number: 8895633Abstract: The cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions of the present invention are cross-linked anionic polyelectrolytes CAPE 6 and CAPE 9, containing pH-responsive amino acid residues. The cross-linked anionic polyelectrolytes have been synthesized via cycloco-polymerization and ter-polymerization of a diallylammonioethanoate monomer (90 mol %) and a cross-linker, 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %) in the absence of SO2 (CAPE 6) and in the presence of SO2 (CAPE 9), respectively. For the sorbents CAPE 6 and CAPE 9, the efficiency of Cu2+ removal at an initial metal concentration of 200 ppb was found to be 77.5% and 99.4%, respectively. Treatment of real wastewater samples spiked with Cu2+ ions showed the excellent ability of the cross-linked anionic polyelectrolytes to adsorb metal ions.Type: GrantFiled: March 4, 2013Date of Patent: November 25, 2014Assignee: King Fahd University of Petroleum and MineralsInventors: Othman Charles Sadeq Othman Al Hamouz, Shaikh Asrof Ali, Nouri Mohammed Hassan
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Patent number: 8871822Abstract: The cross-linked polyphosphonate-sulfone composition for removal of metal ions from wastewater relates to a cross-linked anionic polyelectrolyte polymer for the removal of metal ions, such as lead (Pb2+) and copper (Cu2+) ions, from wastewater and the like. The cross-linked anionic polyelectrolyte polymer has the formula: The cross-linked anionic polyelectrolyte polymer is made by cyclopolymerization of diallylaminomethylphosphonic acid, 1,1,4,4-tetraallylpiperazinium dichloride (a cross-linker), and sulfur dioxide in the presence of AIBN (an initiator) in DMSO at 65° C. to form a cross-linked polyzwitterionic acid (CPZA). The CPZA is then treated with base (such as sodium hydroxide) to form the cross-linked anionic polyelectrolyte polymer having the formula shown above.Type: GrantFiled: October 15, 2012Date of Patent: October 28, 2014Assignee: King Fahd University of Petroleum and MineralsInventors: Shaikh Asrof Ali, Othman Charles Sadeq Othman Al Hamouz
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Publication number: 20140107236Abstract: The cross-linked polyphosphonate-sulfone composition for removal of metal ions from wastewater relates to a cross-linked anionic polyelectrolyte polymer for the removal of metal ions, such as lead (Pb2+) and copper (Cu2+) ions, from wastewater and the like. The cross-linked anionic polyelectrolyte polymer has the formula: The cross-linked anionic polyelectrolyte polymer is made by cyclopolymerization of diallylaminomethylphosphonic acid, 1,1,4,4-tetraallylpiperazinium dichloride (a cross-linker), and sulfur dioxide in the presence of AIBN (an initiator) in DMSO at 65° C. to form a cross-linked polyzwitterionic acid (CPZA). The CPZA is then treated with base (such as sodium hydroxide) to form the cross-linked anionic polyelectrolyte polymer having the formula shown above.Type: ApplicationFiled: October 15, 2012Publication date: April 17, 2014Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SHAIKH ASROF ALI, OTHMAN CHARLES SADEQ OTHMAN AL HAMOUZ
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Patent number: 8614260Abstract: The cross-linked polyphosphonate composition for the removal of metal ions from wastewater is a cross-linked anionic polyelectrolyte polymer having the formula: The cross-linked anionic polyelectrolyte is made by cyclocopolymerizing diallylaminomethylphosphonic acid and 1,1,4,4-tetraallylpiperazinium dichloride (a cross-linker) to form a cross-linked polyzwitterionic acid (CPZA). The CPZA is then treated with a base, such as sodium hydroxide, to form a cross-linked anionic polyelectrolyte polymer having the above formula. The composition may be used to remove heavy metal ions, such as Cu2+ and Pb2+, from wastewater.Type: GrantFiled: October 15, 2012Date of Patent: December 24, 2013Assignee: King Fahd University of Petroleum and MineralsInventors: Othman Charles Sadeq Othman Al Hamouz, Shaikh Asrof Ali