Patents by Inventor Dharmendra Singh
Dharmendra Singh 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: 20240076274Abstract: A Janus G-C base as building block for a triazine based self-assembly of formula (I), a process for the preparation, and its application in developing supramolecular polymers, peptide nucleic acids (PNAs) and smart polymers thereof. A triazine based self-assembly of formula (I): wherein, ‘R’ is selected from the group comprising of linear or branched unsubstituted and substituted C1-C7 alkyl, unsubstituted and substituted aryl, unsubstituted and substituted natural amino acids which may be protected, linear or branched unsubstituted and substituted C1-C7 alcohols, or linear or branched unsubstituted and substituted C1-C7 amines.Type: ApplicationFiled: January 25, 2022Publication date: March 7, 2024Inventors: Chhuttan Lal MEENA, Dharmendra SINGH, Gangadhar Jessy SANJAYAN
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Patent number: 11144575Abstract: The present disclosure relates to system(s) and method(s) for data processing and visualization. The system is configured to enable processing and visually representing a dataset specified by a user. Initially, the system accepts a rule corresponding to at least one dimension associated with the dataset, wherein the rule is associated with a lower level of abstraction. When a rollup operation is performed along the specified dimension of the dataset for generating higher level graphical representation, the system is configured to preserve the rule associated with the dataset, regardless of any mathematical or logical cancellation of values due to the rollup operation and reflects the lower level details at a higher level of abstraction.Type: GrantFiled: August 10, 2016Date of Patent: October 12, 2021Assignee: KYVOS INSIGHTS, INC.Inventors: Leigh Chapman, Kavindra Singh, Dharmendra Singh Chouhan, Pratik Jain
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Patent number: 9691049Abstract: Master BOM creation may include extracting BOM data from first and second BOMs, and determining which BOM extracted data is greater. If the first or second BOM is a CAD BOM and the other BOM is a non-CAD BOM, the CAD BOM and non-CAD BOMs may be respectively used as a first and a second source BOM data for a master BOM table. If the first and second BOMs are non-CAD BOMs, or both of the first and second BOMs are CAD BOMs, the greater and lesser of the first and second BOM extracted data may be respectively used as the first and as the second source BOM data. A master BOM may be created based on mapping of the master BOM table to the second source BOM data.Type: GrantFiled: September 26, 2016Date of Patent: June 27, 2017Assignee: ACCENTURE GLOBAL SERVICES LIMITEDInventors: Manoj Tiwari, Santiprasad Chakrabarti, Dharmendra Singh Yadav, Swarnalatha Krishnamurthi
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Publication number: 20170046419Abstract: The present disclosure relates to system(s) and method(s) for data processing and visualization. The system is configured to enable processing and visually representing a dataset specified by a user. Initially, the system accepts a rule corresponding to at least one dimension associated with the dataset, wherein the rule is associated with a lower level of abstraction. When a rollup operation is performed along the specified dimension of the dataset for generating higher level graphical representation, the system is configured to preserve the rule associated with the dataset, regardless of any mathematical or logical cancellation of values due to the rollup operation and reflects the lower level details at a higher level of abstraction.Type: ApplicationFiled: August 10, 2016Publication date: February 16, 2017Inventors: Leigh Chapman, Kavindra Singh, Dharmendra Singh Chouhan, Pratik Jain
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Publication number: 20170011342Abstract: Master BOM creation may include extracting BOM data from first and second BOMs, and determining which BOM extracted data is greater. If the first or second BOM is a CAD BOM and the other BOM is a non-CAD BOM, the CAD BOM and non-CAD BOMs may be respectively used as a first and a second source BOM data for a master BOM table. If the first and second BOMs are non-CAD BOMs, or both of the first and second BOMs are CAD BOMs, the greater and lesser of the first and second BOM extracted data may be respectively used as the first and as the second source BOM data. A master BOM may be created based on mapping of the master BOM table to the second source BOM data.Type: ApplicationFiled: September 26, 2016Publication date: January 12, 2017Applicant: Accenture Global Services LimitedInventors: Manoj TIWARI, Santiprasad CHAKRABARTI, Dharmendra SINGH YADAV, Swarnalatha KRISHNAMURTHI
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Patent number: 9492406Abstract: The present invention relates to a novel pharmaceutical composition having enhanced bioavailability through improved aqueous dissolution of poorly water soluble drugs, and to a method for preparing it. The invention more particularly relates to an oral pharmaceutical composition containing active ingredients of poor aqueous solubility, more specifically, antiparasitic and antipneumocystic drug Atovaquone alone or in combination with Proguanil.Type: GrantFiled: September 20, 2013Date of Patent: November 15, 2016Assignee: Ipca Laboratories Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Pramilkumar Mathur, Thankachen Byju Nellithanath, Gaurav Sahal, Rakesh Kumar Bhasin, Durga Prasad Samantaray
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Patent number: 9483587Abstract: Master BOM creation may include extracting BOM data from first and second BOMs, and determining which BOM extracted data is greater. If the first or second BOM is a CAD BOM and the other BOM is a non-CAD BOM, the CAD BOM and non-CAD BOMs may be respectively used as a first and a second source BOM data for a master BOM table. If the first and second BOMs are non-CAD BOMs, or both of the first and second BOMs are CAD BOMs, the greater and lesser of the first and second BOM extracted data may be respectively used as the first and as the second source BOM data. A master BOM may be created based on mapping of the master BOM table to the second source BOM data.Type: GrantFiled: December 30, 2013Date of Patent: November 1, 2016Assignee: ACCENTURE GLOBAL SERVICES LIMITEDInventors: Manoj Tiwari, Santiprasad Chakrabarti, Dharmendra Singh Yadav, Swarnalatha Krishnamurthi
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Publication number: 20150238416Abstract: The present invention relates to a novel pharmaceutical composition having enhanced bioavailability through improved aqueous dissolution of poorly water soluble drugs, and to a method for preparing it. The invention more particularly relates to an oral pharmaceutical composition containing active ingredients of poor aqueous solubility, more specifically, antiparasitic and antipneumocystic drug Atovaquone alone or in combination with Proguanil.Type: ApplicationFiled: September 20, 2013Publication date: August 27, 2015Inventors: Ashok Kumar, Dharmendra Singh, Pramilkumar Mathur, Thankachen Byju Nellithanath, Gaurav Sahal, Rakesh Kumar Bhasin, Durga Prasad Samantaray
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Patent number: 8987234Abstract: Disclosed are complexes of an antipneumocystic compound and an antimalarial compound, processes for their preparation, pharmaceutical compositions and methods of using said complexes or compositions for the treatment and/or prophylaxis of parasitic infections.Type: GrantFiled: August 20, 2010Date of Patent: March 24, 2015Assignee: IPCA Laboratories Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Pramilkumar Mathur, Vitthal Syryabhan Buchude
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Publication number: 20140364985Abstract: Master BOM creation may include extracting BOM data from first and second BOMs, and determining which BOM extracted data is greater. If the first or second BOM is a CAD BOM and the other BOM is a non-CAD BOM, the CAD BOM and non-CAD BOMs may be respectively used as a first and a second source BOM data for a master BOM table. If the first and second BOMs are non-CAD BOMs, or both of the first and second BOMs are CAD BOMs, the greater and lesser of the first and second BOM extracted data may be respectively used as the first and as the second source BOM data. A master BOM may be created based on mapping of the master BOM table to the second source BOM data.Type: ApplicationFiled: December 30, 2013Publication date: December 11, 2014Applicant: Accenture Global Services LimitedInventors: Manoj Tiwari, Santiprasad Chakrabarti, Dharmendra Singh Yadav, Swarnalatha Krishnamurthi
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Publication number: 20120136062Abstract: Disclosed are complexes of an antipneumocystic compound and an antimalarial compound, processes for their preparation, pharmaceutical compositions and methods of using said complexes or compositions for the treatment and/or prophylaxis of parasitic infections.Type: ApplicationFiled: August 20, 2010Publication date: May 31, 2012Applicant: IPCA Laboratories Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Pramilkumar Mathur, Vitthal Syryabhan Buchude
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Publication number: 20110166347Abstract: The present invention discloses an isolation and purification process for mycophenolic acid obtained from the fermentation process. Invention further discloses preparation of sodium salt of mycophenolic acid and mycophenolate mofetil from mycophenolic acid.Type: ApplicationFiled: September 9, 2009Publication date: July 7, 2011Applicant: IPCA Laboratories Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Umesh Luthara, Yogesh Mohandhai Patel
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Patent number: 7847094Abstract: Disclosed herein is an industrial preparation of Quetiapine by the reaction of 11-piperazinyldibenzo[b,f][1,4]-thiazepine or its salt with 2-(2-chloroethoxy)ethanol in presence of an organic or inorganic base under neat or aqueous condition to form 11-[4-{2-(2-hydroxyethoxy)ethyl}-1-piperazinyl]dibenzo[b,f]-[1,4]thiazepine. The quetiapine free base obtained is further converted to its hemi-fumarate salt.Type: GrantFiled: June 8, 2007Date of Patent: December 7, 2010Assignee: IPCA Laboratories LimitedInventors: Ashok Kumar, Dharmendra Singh, Swapnali Hemant Patil, Ganesh Devidas Mahale, Uttamrao Arjunrao Sawant, Balasaheb Ganpat Jadhav, Ragneshkumar Rana
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Patent number: 7847127Abstract: Disclosed herein is a novel process for preparation of atovaquone. The process includes reacting 1,4-naphthoquinone with trans-4-(4-chlorophenyl) cyclohexane carboxylic acid followed by halogenation to obtain a dihalo-compound. Further, dehydrohalogenation of the dihalo-compound produces a monohalogeno-compound which under goes hydrolysis to produce atovaquone. The invention also discloses atovaquone in a substantially pure and well defined polymorphic form designated as “Form IPCA-ATO,” and the preparation thereof.Type: GrantFiled: October 21, 2009Date of Patent: December 7, 2010Assignee: IPCA Laboratories LimitedInventors: Ashok Kumar, Suneel Yeshwant Dike, Pramil Kumar Mathur, Nellithanath Thankachen Byju, Brajesh Sharma, Swapnil Shreekant Kore, Vitthal Suryabhan Buchude, Dharmendra Singh
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Publication number: 20100210848Abstract: The present invention discloses novel processes for preparing optically active sulphoxide compounds of formula I by asymmetric oxidation of prochiral sulphide compounds of Formula II. More particularly, the invention discloses processes for preparation of optically active proton pump Inhibitors (PPIs) or their optically active precursor (=intermediate) compounds (Formula I) that can be converted into pharmaceutically useful PPIs.Type: ApplicationFiled: October 3, 2008Publication date: August 19, 2010Applicant: IPCA Laboratories Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Nellithanath Thankachen Byju, Prasad Shankar Kadam, Harishankar Prahladkumar Vishwakarma, Vijay Ojha, Umeshkumar Suresh Ninawe
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Patent number: 7763748Abstract: The present invention relates to a process for preparation of isotretinoin and more specifically, to a purification process for obtaining highly pure isotretinoin that is useful as a keratolytic agent, particularly useful for the treatment of acne. The process involves treating isotretinoin containing metal contamination and/or other impurities with a base in a suitable solvent to form a solution of isotretinoin, followed by adsorption, precipiation, and filtration or centrifugation.Type: GrantFiled: February 20, 2008Date of Patent: July 27, 2010Assignee: IPCA Laboratories LimitedInventors: Ashok Kumar, Dharmendra Singh, Ganesh Devidas Mahale, Ragnesh Kumar Rana, Mahesh Kharade
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Publication number: 20100081847Abstract: Disclosed herein is a novel process for preparation of atovaquone. The process includes reacting 1,4-naphthoquinone with trans-4-(4-chlorophenyl) cyclohexane carboxylic acid followed by halogenation to obtain a dihalo-compound. Further, dehydrohalogenation of the dihalo-compound produces a monohalogeno-compound which under goes hydrolysis to produce atovaquone. The invention also discloses atovaquone in a substantially pure and well defined polymorphic form designated as “Form IPCA-ATO,” and the preparation thereof.Type: ApplicationFiled: October 21, 2009Publication date: April 1, 2010Inventors: Ashok Kumar, Suneel Yeshwant Dike, Pramilkumar Mathur, Nellithanath Thankachen Byju, Brajesh Sharma, Swapnil Shreekant Kore, Vitthal Suryabhan Buchude, Dharmendra Singh
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Publication number: 20090221715Abstract: The present invention relates to a novel polymorphic form of atovaquone. More particularly, it relates to a novel crystalline form, that has improved solubility and other bulk characteristics suitable for pharmaceutical application. The present invention also relates to processes for preparing a new polymorphic form of atovaquone and its use in industry.Type: ApplicationFiled: February 27, 2009Publication date: September 3, 2009Inventors: Ashok Kumar, Suneel Yeshwant Dike, Pramilkumar Mathur, Nellithanath Thankachen Byju, Brajesh Sharma, Swapnil Shreekant Kore, Vitthal Suryabhan Buchude, Dharmendra Singh
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Patent number: 7547791Abstract: A one-pot industrial process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazole-1-yl)methyl]-4H-carbazol-4-one of Formula-(I) from 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one of Formula-(IV) involves reaction of Formula (IV) with HNR1R2 salt and paraformaldehyde, where R1,R2 are independently alkyl groups or together forms a cyclic alkyl group, in a solvent system of acetic acid and hydrocarbon solvent to form a crude mixture of intermediate compounds of Formula (III) and (VIII), which is converted to ondansetron (Formula (I)) without isolation by reaction with 2methyimidazole in a suitable solvent system in the same pot.Type: GrantFiled: October 26, 2004Date of Patent: June 16, 2009Assignee: IPCA Laboratories Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Atul Jadhav, Navinchandra Darpan Pandya, Shankar Deepak Panmand, Ramsingh Gajendrasingh Thakur
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Patent number: 7459467Abstract: The present invention discloses selective and complete reduction of pyridine ring in a biaryl system comprising ?-substituted or non-substituted benzene ring and relates more specifically, not exclusively, for the manufacture of methylphenidate, which is used for treatment of Attention Deficit Hyperactive Disorder (ADHD) and also acts as central nervous system stimulant, by using palladium/C in a solvent such as C1-C4 alcohols in presence of molar quantities of organic and/or inorganic acids.Type: GrantFiled: June 10, 2005Date of Patent: December 2, 2008Assignee: IPCA Laboratories, Ltd.Inventors: Ashok Kumar, Dharmendra Singh, Swapnali Hemant Patil, Ganesh Devidas Mahale, Uttamrao Arjunrao Sawant