Patents by Inventor Khaled Salama
Khaled Salama 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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Publication number: 20240044070Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: ApplicationFiled: October 20, 2023Publication date: February 8, 2024Applicant: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled SALAMA, Reem Y. AL JINDAN
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Patent number: 11834775Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: GrantFiled: June 20, 2023Date of Patent: December 5, 2023Assignee: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled Salama, Reem Y Al Jindan
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Publication number: 20230332346Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: ApplicationFiled: June 20, 2023Publication date: October 19, 2023Applicant: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled SALAMA, Reem Y AL JINDAN
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Patent number: 11781885Abstract: An energy-efficient capacitance-to-digital converter (CDC) is provided that utilizes a capacitance-domain successive approximation (SAR) technique. Unlike SAR analog-to-digital converters (ADCs), analysis shows that for SAR CDCs, the comparator offset voltage will result in signal-dependent and parasitic-dependent conversion errors, which necessitates an op-amp-based implementation. The inverter-based SAR CDC contemplated herein provides robust, energy-efficient, and fast operation. The inverter-based SAR CDC may include a hybrid coarse-fine programmable capacitor array. The design of example embodiments is insensitive to analog references, and thus achieves very low temperature sensitivity without the need for calibration. Moreover, this design achieves improved energy efficiency.Type: GrantFiled: August 11, 2020Date of Patent: October 10, 2023Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hesham Omran, Abdulaziz Alhoshany, Khaled Salama
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Patent number: 11746462Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: GrantFiled: March 16, 2022Date of Patent: September 5, 2023Assignee: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled Salama, Reem Y. Al Jindan
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Publication number: 20220213644Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: ApplicationFiled: March 16, 2022Publication date: July 7, 2022Applicant: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled SALAMA, Reem Y. AL JINDAN
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Patent number: 11306430Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: GrantFiled: May 5, 2021Date of Patent: April 19, 2022Assignee: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled Salama, Reem Y. Al Jindan
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Publication number: 20210254273Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: ApplicationFiled: May 5, 2021Publication date: August 19, 2021Applicant: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled SALAMA, Reem Y. AL JINDAN
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Patent number: 11072884Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: GrantFiled: October 16, 2018Date of Patent: July 27, 2021Assignee: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled Salama, Reem Y. Al Jindan
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Publication number: 20200373931Abstract: An energy-efficient capacitance-to-digital converter (CDC) is provided that utilizes a capacitance-domain successive approximation (SAR) technique. Unlike SAR analog-to-digital converters (ADCs), analysis shows that for SAR CDCs, the comparator offset voltage will result in signal-dependent and parasitic-dependent conversion errors, which necessitates an op-amp-based implementation. The inverter-based SAR CDC contemplated herein provides robust, energy-efficient, and fast operation. The inverter-based SAR CDC may include a hybrid coarse-fine programmable capacitor array. The design of example embodiments is insensitive to analog references, and thus achieves very low temperature sensitivity without the need for calibration. Moreover, this design achieves improved energy efficiency.Type: ApplicationFiled: August 11, 2020Publication date: November 26, 2020Inventors: Hesham OMRAN, Abdulaziz ALHOSHANY, Khaled SALAMA
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Patent number: 10819359Abstract: An energy-efficient capacitance-to-digital converter (CDC) is provided that utilizes a capacitance-domain successive approximation (SAR) technique. Unlike SAR analog-to-digital converters (ADCs), analysis shows that for SAR CDCs, the comparator offset voltage will result in signal-dependent and parasitic-dependent conversion errors, which necessitates an op-amp-based implementation. The inverter-based SAR CDC contemplated herein provides robust, energy-efficient, and fast operation. The inverter-based SAR CDC may include a hybrid coarse-fine programmable capacitor array. The design of example embodiments is insensitive to analog references, and thus achieves very low temperature sensitivity without the need for calibration. Moreover, this design achieves improved energy efficiency.Type: GrantFiled: September 19, 2016Date of Patent: October 27, 2020Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hesham Omran, Abdulaziz Alhoshany, Khaled Salama
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Publication number: 20200115845Abstract: A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Type: ApplicationFiled: October 16, 2018Publication date: April 16, 2020Applicant: Imam Abdulrahman Bin Faisal UniversityInventors: Khaled SALAMA, Reem Y. AL JINDAN
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Publication number: 20180254779Abstract: An energy-efficient capacitance-to-digital converter (CDC) is provided that utilizes a capacitance-domain successive approximation (SAR) technique. Unlike SAR analog-to-digital converters (ADCs), analysis shows that for SAR CDCs, the comparator offset voltage will result in signal-dependent and parasitic-dependent conversion errors, which necessitates an op-amp-based implementation. The inverter-based SAR CDC contemplated herein provides robust, energy-efficient, and fast operation. The inverter-based SAR CDC may include a hybrid coarse-fine programmable capacitor array. The design of example embodiments is insensitive to analog references, and thus achieves very low temperature sensitivity without the need for calibration. Moreover, this design achieves improved energy efficiency.Type: ApplicationFiled: September 19, 2016Publication date: September 6, 2018Applicant: King Abdullah University of Science and TechnologyInventors: Hesham OMRAN, Abdulaziz ALHOSHANY, Khaled SALAMA
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Patent number: 9305706Abstract: Disclosed is a fractional order capacitor comprising a dielectric nanocomposite layer of thickness t, comprising a first side, and a second side opposite the first side, a first electrode layer coupled to the first side of the dielectric nanocomposite layer, a second electrode layer coupled to the second side of the dielectric nanocomposite layer, a complex impedance phase angle dependent on at least a material weight percentage of filler material in a dielectric nanocomposite layer.Type: GrantFiled: March 6, 2014Date of Patent: April 5, 2016Assignee: Saudi Basic Industries CorporationInventors: Mahmoud N. Almadhoun, Amro Elshurafa, Khaled Salama, Husam Alshareef
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Publication number: 20140266374Abstract: Disclosed is a fractional order capacitor comprising a dielectric nanocomposite layer of thickness t, comprising a first side, and a second side opposite the first side, a first electrode layer coupled to the first side of the dielectric nanocomposite layer, a second electrode layer coupled to the second side of the dielectric nanocomposite layer, a complex impedance phase angle dependent on at least a material weight percentage of filler material in a dielectric nanocomposite layer.Type: ApplicationFiled: March 6, 2014Publication date: September 18, 2014Applicant: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Mahmoud N. Almadhoun, Amro Elshurafa, Khaled Salama, Husam Alshareef
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Patent number: 8709788Abstract: Characteristics of a chemical or biological sample are detected using an approach involving light detection. According to an example embodiment of the present invention, an assaying arrangement including a light detector is adapted to detect light from a sample, such as a biological material. A signal corresponding to the detected light is used to characterize the sample, for example, by detecting a light-related property thereof. In one implementation, the assaying arrangement includes integrated circuitry having a light detector and a programmable processor, with the light detector generating a signal corresponding to the light and sending the signal to the processor. The processor provides an output corresponding to the signal and indicative of a characteristic of the sample.Type: GrantFiled: November 19, 2012Date of Patent: April 29, 2014Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Abbas El Gamal, Helmy Eltoukhy, Khaled Salama
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Patent number: 8313904Abstract: Characteristics of a chemical or biological sample are detected using an approach involving light detection. According to an example embodiment of the present invention, an assaying arrangement including a light detector is adapted to detect light from a sample, such as a biological material. A signal corresponding to the detected light is used to characterize the sample, for example, by detecting a light-related property thereof. In one implementation, the assaying arrangement includes integrated circuitry having a light detector and a programmable processor, with the light detector generating a signal corresponding to the light and sending the signal to the processor. The processor provides an output corresponding to the signal and indicative of a characteristic of the sample.Type: GrantFiled: November 26, 2008Date of Patent: November 20, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Abbas El Gamal, Helmy Eltoukhy, Khaled Salama
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Patent number: 8023113Abstract: Characteristics of a chemical or biological sample are detected using an approach involving light detection. According to an example embodiment of the present invention, an assaying arrangement including a light detector is adapted to detect light from a sample, such as a biological material. A signal corresponding to the detected light is used to characterize the sample, for example, by detecting a light-related property thereof. In one implementation, the assaying arrangement includes integrated circuitry having a light detector and a programmable processor, with the light detector generating a signal corresponding to the light and sending the signal to the processor. The processor provides an output corresponding to the signal and indicative of a characteristic of the sample.Type: GrantFiled: April 6, 2009Date of Patent: September 20, 2011Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Abbas El Gamal, Helmy Eltoukhy, Khaled Salama
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Patent number: 7595883Abstract: Characteristics of a chemical or biological sample are detected using an approach involving light detection. According to an example embodiment of the present invention, an assaying arrangement including a light detector is adapted to detect light from a sample, such as a biological material. A signal corresponding to the detected light is used to characterize the sample, for example, by detecting a light-related property thereof. In one implementation, the assaying arrangement includes integrated circuitry having a light detector and a programmable processor, with the light detector generating a signal corresponding to the light and sending the signal to the processor. The processor provides an output corresponding to the signal and indicative of a characteristic of the sample.Type: GrantFiled: September 16, 2003Date of Patent: September 29, 2009Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Abbas El Gamal, Helmy Eltoukhy, Khaled Salama
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Publication number: 20090197326Abstract: Characteristics of a chemical or biological sample are detected using an approach involving light detection. According to an example embodiment of the present invention, an assaying arrangement including a light detector is adapted to detect light from a sample, such as a biological material. A signal corresponding to the detected light is used to characterize the sample, for example, by detecting a light-related property thereof. In one implementation, the assaying arrangement includes integrated circuitry having a light detector and a programmable processor, with the light detector generating a signal corresponding to the light and sending the signal to the processor. The processor provides an output corresponding to the signal and indicative of a characteristic of the sample.Type: ApplicationFiled: April 6, 2009Publication date: August 6, 2009Inventors: Abbas El Gamal, Helmy Eltoukhy, Khaled Salama