Patents by Inventor Saif A. Khan
Saif A. Khan 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).
-
Publication number: 20220402895Abstract: The present invention relates, in general terms, to a method of synthesising compounds and a system for synthesising compounds. The method and system can be automated. The method of synthesising a compound includes providing a solid support in fluid communication with a computer-controlled flow system, covalently bonding a first precursor to the solid support, performing at least one reaction, and cleaving the compound from the solid support.Type: ApplicationFiled: October 22, 2020Publication date: December 22, 2022Inventors: Jie WU, Saif A. KHAN, Chenguang LIU, Wenbin WU, Weihao CHEN, Mu WANG, Jiaxun XIE
-
Publication number: 20190068768Abstract: A privacy protection system enables a user to prevent unwanted and access to data collected by the camera or microphone of a cellular device. The camera is obstructed by a member in such a way as to allow light to reach the camera in an unintelligible state. The microphone is blocked by a knob to prevent sound from reaching the microphone. The member and knob are positioned by way of a case.Type: ApplicationFiled: August 31, 2018Publication date: February 28, 2019Inventors: Rohan Garg, Shahin Garrossian, Saif Khan
-
Patent number: 9902686Abstract: A one-to-many parallelized millireactor system capable of high throughput production in millireactors. Also disclosed is a method for carrying out multi-phase reactions.Type: GrantFiled: November 3, 2016Date of Patent: February 27, 2018Assignee: National University of SingaporeInventors: Saif A. Khan, Swee Kun Yap
-
Patent number: 9850184Abstract: Disclosed is a reactor system that contains multiple millireactors, each including a millitube, a first feed line, a second feed line, and a third feed line. Each of the first and second feed lines has a hydraulic damper disposed therein. Also disclosed is a process for conducting in a millitube a triphasic flow reaction that requires a liquid reactant, a gas reactant, and a catalyst.Type: GrantFiled: June 19, 2015Date of Patent: December 26, 2017Assignee: National University of SingaporeInventors: Saif A. Khan, Ning Yan, Swee Kun Yap, Yuan Yuan
-
Publication number: 20170304207Abstract: An emulsion-based method for the manufacture of a crystalized spherical agglomerate and/or a pharmaceutical product is provided; and crystalized spherical agglomerates and/or pharmaceutical products manufactured thereby.Type: ApplicationFiled: July 12, 2017Publication date: October 26, 2017Inventors: Saif A. KHAN, Reno Antony Louis LEON, Abu Zayed Md. BADRUDDOZA, Wai Yew WAN, T. Alan HATTON
-
Publication number: 20170121271Abstract: A one-to-many parallelized millireactor system capable of high throughput production in millireactors. Also disclosed is a method for carrying out multi-phase reactions.Type: ApplicationFiled: November 3, 2016Publication date: May 4, 2017Inventors: Saif A. Khan, Swee Kun Yap
-
Publication number: 20170101358Abstract: Disclosed is a reactor system that contains multiple millireactors, each including a millitube, a first feed line, a second feed line, and a third feed line. Each of the first and second feed lines has a hydraulic damper disposed therein. Also disclosed is a process for conducting in a millitube a triphasic flow reaction that requires a liquid reactant, a gas reactant, and a catalyst.Type: ApplicationFiled: June 19, 2015Publication date: April 13, 2017Inventors: Saif A. Khan, Ning Yan, Swee Kun Yap, Yuan Yuan
-
Publication number: 20160263034Abstract: The invention concerns an emulsion-based method for the manufacture of a crystalized spherical agglomerate and/or a pharmaceutical product; and crystalized spherical agglomerate and/or a pharmaceutical product manufactured thereby.Type: ApplicationFiled: October 15, 2014Publication date: September 15, 2016Inventors: Saif A. KHAN, Reno Antony Louis LEON, Abu Zayed Md. BADRUDDOZA, Wai Yew WAN, T. Alan HATTON
-
Patent number: 8964889Abstract: A device and method for precoding vectors in a communication system is provided. A transmitter may precode a data vector using information regarding a communication channel prior to transmitting the data vector. The transmitter may precode the data vector in a manner that reduces an energy value of a resulting transmit data vector so as to minimize interference in a received signal at a receiver. The transmitter may perturb entries of the data vector one-by-one in an iterative fashion until a minimum in an energy value of the transmit data vector is obtained.Type: GrantFiled: October 23, 2012Date of Patent: February 24, 2015Assignee: Indian Institute of ScienceInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Saif Khan Mohammed
-
Patent number: 8802441Abstract: There is provided a method for synthesizing colloidal nanoparticles comprising the step of creating a reactive three-phase foam containing reactants therein for synthesizing the colloidal nanoparticles.Type: GrantFiled: March 4, 2011Date of Patent: August 12, 2014Assignee: National University of SingaporeInventors: Saif A. Khan, Suhanya Duraiswamy
-
Patent number: 8804858Abstract: Techniques for enabling an estimate of a transmittal signal vector, given a received signal vector and a channel matrix to be computed, are provided. An initial solution signal vector for the estimate is calculated, and based on the initial estimate, a pool of possible solutions is generated. Methods described herein may be iterative in nature, and may cycle through possible estimates of the transmitted signal vector so as to continually improve the estimates and the pool of possible estimates. The methods may terminate once stopping criteria are reached. In some example methods, solutions may be marked at taboo and a taboo period can be established that indicates a number of subsequent iterations for which the current solution signal vector cannot be considered.Type: GrantFiled: July 2, 2013Date of Patent: August 12, 2014Assignee: Indian Institute of ScienceInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Srinidhi Nagaraja, Saif Khan Mohammed
-
Patent number: 8605808Abstract: Disclosed is a method and system to detect data transmitted by multiple transmit antennas. The method comprises selecting a starting data block that is either a random data block or an output data block from known detectors. Also, the method comprises changing each symbol of the starting data block one symbol at a time to identify a data block which has minimum euclidean distance from the starting data block as detected data block. Next, changing two symbols of the detected data block at a time to identify a data block which has minimum euclidean distance from the starting data block as second data block and assigning the second data block as the starting data block. Repeating the above steps, if the minimum euclidean distance of second data block is better than that of the detected data block, and determining the detected data block as the data transmitted.Type: GrantFiled: February 25, 2009Date of Patent: December 10, 2013Assignee: Indian Institute of ScienceInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Saif Khan Mohammed
-
Publication number: 20130315356Abstract: Techniques for enabling an estimate of a transmittal signal vector, given a received signal vector and a channel matrix to be computed, are provided. An initial solution signal vector for the estimate is calculated, and based on the initial estimate, a pool of possible solutions is generated. Methods described herein may be iterative in nature, and may cycle through possible estimates of the transmitted signal vector so as to continually improve the estimates and the pool of possible estimates. The methods may terminate once stopping criteria are reached. In some example methods, solutions may be marked at taboo and a taboo period can be established that indicates a number of subsequent iterations for which the current solution signal vector cannot be considered.Type: ApplicationFiled: July 2, 2013Publication date: November 28, 2013Applicant: Indian Institute of ScienceInventors: Ananthanarayanan CHOCKALINGAM, Balaji Sundar RAJAN, Srinidhi NAGARAJA, Saif Khan MOHAMMED
-
Patent number: 8503544Abstract: Techniques for enabling an estimate of a transmitted signal vector, given a received signal vector and a channel matrix to be computed, are provided. An initial solution signal vector for the estimate is calculated, and based on the initial estimate, a pool of possible solutions is generated. Methods described herein may be iterative in nature, and may cycle through possible estimates of the transmitted signal vector so as to continually improve the estimates and the pool of possible estimates. The methods may terminate once stopping criteria are reached. In some example methods, solutions may be marked at taboo and a taboo period can be established that indicates a number of subsequent iterations for which the current solution signal vector cannot be considered.Type: GrantFiled: April 30, 2010Date of Patent: August 6, 2013Assignee: Indian Institute of ScienceInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Srinidhi Nagaraja, Saif Khan Mohammed
-
Publication number: 20130171413Abstract: Methods for altering the wetting property of the surface of a substrate are disclosed. The methods can include the step of providing an array of nanostructures on the substrate, each nanostructure having a proximal end adjacent to the substrate and a distal end opposite to the proximal end. The methods can also include the step of moving the distal ends of at least one subset of the array of nanostructures towards each other to form at least one nanostructure cluster. The nanostructures of each cluster have distal ends that are spaced closer to each other relative to the respective proximal ends of the adjacent nanostructures, the nanostructure cluster altering the wetting property of the substrate.Type: ApplicationFiled: September 13, 2011Publication date: July 4, 2013Inventors: Saif A. Khan, Mohammed Khalid Bin Dawood, Raj Rajagopalan, Wee Kiong Choi, Han Zheng
-
Patent number: 8320432Abstract: A device and method for precoding vectors in a communication system is provided. A transmitter may precode a data vector using information regarding a communication channel prior to transmitting the data vector. The transmitter may precode the data vector in a manner that reduces an energy value of a resulting transmit data vector so as to minimize interference in a received signal at a receiver. The transmitter may perturb entries of the data vector one-by-one in an iterative fashion until a minimum in an energy value of the transmit data vector is obtained.Type: GrantFiled: April 27, 2009Date of Patent: November 27, 2012Assignee: Indian Institute of Science at BangaloreInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Saif Khan Mohammed
-
Patent number: 8116411Abstract: A method to detect data transmitted from multiple antennas, said method comprising steps of: selecting a starting data block and calling it as previous data block; defining a set of indices of bits to be checked for possible flip in the previous data block as a check candidate set; applying update rule to obtain updated data block using the previous data block and the check candidate set, wherein the update is made in such a manner that change in likelihood is positive; checking if the updated data block and several consecutive previous data blocks are the same; if yes, declare the updated data block as the detected data block; if no, make updated data block as previous data block and repeat updation of data block.Type: GrantFiled: August 22, 2007Date of Patent: February 14, 2012Assignee: Indian Institute of ScienceInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Kalepalli Vishnu Vardhan, Saif Khan Mohammed
-
Publication number: 20110268203Abstract: Techniques for enabling an estimate of a transmitted signal vector, given a received signal vector and a channel matrix to be computed, are provided. An initial solution signal vector for the estimate is calculated, and based on the initial estimate, a pool of possible solutions is generated. Methods described herein may be iterative in nature, and may cycle through possible estimates of the transmitted signal vector so as to continually improve the estimates and the pool of possible estimates. The methods may terminate once stopping criteria are reached. In some example methods, solutions may be marked at taboo and a taboo period can be established that indicates a number of subsequent iterations for which the current solution signal vector cannot be considered.Type: ApplicationFiled: April 30, 2010Publication date: November 3, 2011Applicant: INDIAN INSTITUTE OF SCIENCEInventors: Ananthanarayanan Chockalingam, Balaji Sundar Rajan, Srinidhi N., Saif Khan Mohammed
-
Publication number: 20110215277Abstract: There is provided a method for synthesizing colloidal nanoparticles comprising the step of creating a reactive three-phase foam containing reactants therein for synthesizing the colloidal nanoparticles.Type: ApplicationFiled: March 4, 2011Publication date: September 8, 2011Applicant: NATIONAL UNIVERSITY OF SINGAPOREInventors: Saif A. Khan, Suhanya Duraiswamy
-
Publication number: 20110200986Abstract: There is provided a method, an in vitro method and a detection system for detecting the presence of at least one biological molecule in at least one sample. The method can include, for example, providing a sample and/or a binding agent to a contact portion of a surface by way of at least one microfluidic channel; disposing a liquid crystal at the contact portion; determining whether the orientation of the liquid crystal changes after the sample contacts the binding agent, indicating the presence of the biological molecule; and determining length of bright region of the liquid crystal and/or change in interference color of said liquid crystal, and consequently indicating the quantity of said biological molecule. Also disclosed are methods of detecting biological molecules using at least one 4?-pentyl-biphenyl-4-R, where R may be at least one functional group selected from carboxylic acid, amine, aldehyde, and oligopeptide.Type: ApplicationFiled: October 6, 2009Publication date: August 18, 2011Applicant: NATIONAL UNIVERSITY OF SINGAPOREInventors: Kun-Lin Yang, Changying Xue, Saif A. Khan, Xinyan Bi