Patents by Inventor Attaur Rahman

Attaur Rahman 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: 20120301956
    Abstract: (?)3a,6,6,9a-tetramethylperhydronaphtho[2,1-b]furan (ambrox) is a strong aromatic compound used widely in a variety of perfumery applications and is highly prized for its musky odor. We report novel polar metabolites of (?)3a,6,6,9a-tetramethylperhydronaphtho[2,1-b]furan prepared by a novel process of microbial fermentation using a fungi, Fusarium lini, of unique structures that would be difficult to predict opening up the possibilities of their chemical synthesis. The polar metabolites discovered have stronger aromatic characteristics and offer a new highly prized odiferous characteristic quite different from that of the parent compound and thus can be used in the preparation of perfumes, odor-masking and other odor-management applications.
    Type: Application
    Filed: May 26, 2011
    Publication date: November 29, 2012
    Inventors: Attaur Rahman, Mohammad Iqbal Choudhary, Syed Ghulam Musharraf, Amtul Sami
  • Patent number: 8287921
    Abstract: Treatment of leishmaniasis in animals and humans using the methanolic extract of Physalis minima in petrolatum is described.
    Type: Grant
    Filed: July 24, 2011
    Date of Patent: October 16, 2012
    Inventors: Attaur Rahman, Mohammad Iqbal Choudhary, Sammer Yousuf, Samreen Khan, Farooq Rahman Soomro, Shahida Perveen
  • Patent number: 8198041
    Abstract: A method of producing ?1,4-Tibolone (C21H26O2), 10?-Hydroxy-?4-tibolone (C21H28O3). 11?,15?-Dihydroxytibolone (C21H28O4) and 11?,15?-Dihydroxy-?5-tibolone (C21H28O4) by contacting tibolone and 3?,6?-Dihydroxytibolone (C21H32O3) by contacting 3?-hydroxytibolone with Cunninghamella elegans (ATCC 10028b) is reported.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 12, 2012
    Inventors: Attaur Rahman, Muhammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Patent number: 8148558
    Abstract: Method of producing ?4-Tibolone by contacting tibolone with Fusarium lini (ATCC 9593) is reported.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 3, 2012
    Inventors: Attaur Rahman, Muhammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Patent number: 8148557
    Abstract: Method of producing ?5-Tibolone (C21H28O2), 6?-Hydroxy-?4-tibolone (C21H28O3), 6?-Hydroxy-?4-tibolone (C21H28O3), 15?-Hydroxy-?4-tibolone (C21H28O3), 6?-Hydroxy-?1,4-tibolone (C21H28O3) and 6?-Methoxy-?4-tibolone (C22H30O3) contacting tibolone with Gibberella fujikuroi (ATCC 10704) is reported.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 3, 2012
    Inventors: Attaur Rahman, Muhammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Patent number: 8148556
    Abstract: A new method of producing metabolites of tibolone comprising fermenting tibolone with Rhizopus stolonifer (ATCC 12938) resulting in the formation of ?4-Tibolone (C21H28O2), 6?-Hydroxytibolone, and 15?-Hydroxytibolone (C21H28O3) is reported.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 3, 2012
    Inventors: Attaur Rahman, Muhammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Publication number: 20110124043
    Abstract: Method of producing ?5-Tibolone (C21H28O2), 6?-Hydroxy-?4-tibolone (C21H28O3), 6?-Hydroxy-?4-tibolone (C21H28O3), 15?-Hydroxy-?4-tibolone (C21H28O3), 6?-Hydroxy-?1,4-tibolone (C21H28O3) and 6?-Methoxy-?4-tibolone (C22H30O3) contacting tibolone with Gibberella fujikuroi (ATCC 10704) is reported.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 26, 2011
    Applicant: INTERNATIONAL CENTER FOR CHEMICAL SCIENCES
    Inventors: Attaur Rahman, Mohammad Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Publication number: 20110124042
    Abstract: Method of producing ?4-Tibolone by contacting tibolone with Fusarium lini (ATCC 9593) is reported.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 26, 2011
    Applicant: INTERNATIONAL CENTER FOR CHEMICAL SCIENCES
    Inventors: Attaur Rahman, Mohammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Publication number: 20110124041
    Abstract: A new method of producing metabolites of tibolone comprising fermenting tibolone with Rhizopus stolonifer (ATCC 12938) resulting in the formation of ?4-Tibolone (C21H28O2), 6?-Hydroxytibolone, and 15?-Hydroxytibolone (C21H28O3) is reported.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 26, 2011
    Applicant: INTERNATIONAL CENTER FOR CHEMICAL SCIENCES
    Inventors: Attaur Rahman, Mohammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Publication number: 20110124044
    Abstract: A method of producing ?1,4-Tibolone (C21H26O2), 10?-Hydroxy-?4-tibolone (C21H28O3). 11?,15?-Dihydroxytibolone (C21H28O4) and 11?,15?-Dihydroxy-?5-tibolone (C21H28O4) by contacting tibolone and 3?,6?-Dihydroxytibolone (C21H32O3) by contacting 3?-hydroxytibolone with Cunninghamella elegans (ATCC 10028b) is reported.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 26, 2011
    Applicant: INTERNATIONAL CENTER FOR CHEMICAL SCIENCES
    Inventors: Attaur Rahman, Mohammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Publication number: 20090137542
    Abstract: Sixteen new and one known metabolites were obtained by incubation of tibolone and hydroxytibolones with various fungi. Their structures were elucidated by means of a homo and heteronuclear 2D NMR and by HREI-MS techniques. The relative stereochemistry was deduced by 2D NOESY experiment. These metabolites have shown promising inhibitory activities against ?-glucosidase enzyme. Seven metabolites exhibited potent inhibitory activity against the ?-glucosidase enzyme and were thus found useful in the treatment of diabetes mellitus and other diseases related to the activity of ?-glucosidase enzyme.
    Type: Application
    Filed: November 23, 2007
    Publication date: May 28, 2009
    Applicant: International Center for Chemical Sciences
    Inventors: Attaur Rahman, Muhammed Iqbal Choudhary, Syed Adnan Ali Shah, Shamsun Nahar Khan
  • Publication number: 20090136434
    Abstract: Seven new and one known metabolites of tibolone were obtained by incubation of tibolone with various fungi. Their structures were elucidated by means of a homo and heteronuclear 2D NMR and by HREI-MS techniques. The relative stereochemistry was deduced by 2D NOESY experiment. These metabolites of tibolone were strong inhibitors of tyrosine enzyme and thus useful in producing skin lightning and preserving fruits and vegetables.
    Type: Application
    Filed: November 23, 2007
    Publication date: May 28, 2009
    Applicant: HEJ Research Institute
    Inventors: Attaur Rahman, Muhammad Iqbal Choudhary, Syed Adnan Ali Shah, Mahmud Tareq Hassan Khan
  • Publication number: 20080269510
    Abstract: Three new acylphloroglucinols, myrtucommulone-D (Compound 1), myrtucommulone-E (Compound 2), myrtucommulone-C (Compound 3), and a known acyphloroglucinol myrtucommulone B (Compound 4) were isolated from a methanolic extract of Myrtus communis L. The structures of compounds 1, 2 and 4 were also unambiguously determined by single X-ray diffraction analysis. The compounds 1-4 were found to be more potent ?-glucosidase inhibitors than the clinically used standards, acarbose and deoxynojirimycin. The compound 3 exhibited the highest activity among all the acylphloroglucinols, with an IC50=35.4±1.15 ?M. The compounds 1 and 2 also exhibited strong antibacterial activities.
    Type: Application
    Filed: December 23, 2005
    Publication date: October 30, 2008
    Applicant: INTERNATIONAL INSTITUTE OF CHEMICAL SCIENCES
    Inventors: Attaur Rahman, Mohammad Iqbal Choudhary, Farzana Shaheen, Manzoor Ahmad, Shamsun Nahar Khan, Shazia Anjum
  • Patent number: 7399888
    Abstract: The invention relates to novel isoxylitones and their use as anticonvulsant and in the treatment of a variety of disorders.
    Type: Grant
    Filed: July 1, 2006
    Date of Patent: July 15, 2008
    Assignee: HEJ Research Institute Karachi University
    Inventors: Attaur Rahman, Mohammad Iqbal Choudhary, Farzana Shaheen, Arun Ganesan, Shabana Usman Simjee, A. Mohsin Raza
  • Publication number: 20080004353
    Abstract: The invention relates to novel isoxylitones and their use as anticonvulsant and in the treatment of a variety of disorders
    Type: Application
    Filed: July 1, 2006
    Publication date: January 3, 2008
    Applicant: HEJ RESEARCH INSTITUTE OF CHEMISTRY
    Inventors: Attaur Rahman, Mohammad Iqbal Choudhary, Farzana Shaheen, A Ganesan, Shabana Usman Simjee, A Mohsin Raza
  • Publication number: 20060223883
    Abstract: (?) 3a,6,6,9a-tetramethylperhydronaphtho[2,1-b]furan (ambrox) is a strong aromatic compound used widely in a variety of perfumery applications and is highly prized for its musky odor. We report novel polar metabolites of (?)3a,6,6,9a-tetramethylperhydronaphtho[2,1-b]furan prepared by a novel process of microbial fermentation using a fungi, Fusarium lini, of unique structures that would be difficult to predict opening up the possibilities of their chemical synthesis. The polar metabolites discovered have stronger aromatic characteristics and offer a new highly prized odiferous characteristic quite different from that of the parent compound and thus can be used in the preparation of perfumes, odor-masking and other odor-management applications.
    Type: Application
    Filed: April 2, 2005
    Publication date: October 5, 2006
    Inventors: Attaur Rahman, Mohammad Choudhary, Syed Musharraf