Patents by Inventor Ahmed Kamal

Ahmed Kamal 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: 20090319562
    Abstract: The claimed subject matter relates to an architecture that can construct a map for summarizing analyses with respect to data included in a database. In addition, the architecture can display the map in a special canvas area. Generally, the map is a hub-and-spoke-style map in which a hub is associated with an entity (e.g., a related set of records) included in a database. Likewise, the spokes are typically representative of operations (e.g., filter, join, transform) that act upon the hub/entity from which it extends. The map can aid with open-ended analysis on complex databases by recording and ordering competing hypotheses and can also further collaborative efforts with respect to analysis.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 24, 2009
    Applicant: MICROSOFT CORPORATION
    Inventors: Morten Holm-Petersen, George G. Robertson, Christian Olaf Abeln, Thomas Michael Casey, Stella Yick Chan, Benjamin L. Chronister, Ian Michael Dunmore, Roland Fernandez, Danyel Fisher, David Francis Gainer, Alexandre Gorev, Ahmed Kamal, Matthew Jay Kotler, Murali R. Krishnan, Bongshin Lee, Greg Schechter, Curtis G. Wong
  • Publication number: 20090305367
    Abstract: The present invention particularly discovered strains that are capable of producing a long-chain dicarboxylic acid by culturing microorganisms belonging to Candida vini Candida entamophila, Candida blankii and Pichia farinosa which has the ability to produce a long-chain dicarboxylic acid in a liquid medium containing a straight-chain saturated hydrocarbon (tridecane) as substrate.
    Type: Application
    Filed: December 30, 2005
    Publication date: December 10, 2009
    Inventors: Ahmed Kamal, Sheelu Gurrala, Wasantrao Nitin Fadnavis
  • Publication number: 20090233337
    Abstract: The present invention provides a chemoenzymatic process for the preparation of (R)-GABOB and (R)-carnitine employing lipase-mediated resolution of 3-hydroxy-4-tosyloxybutanenitrile as the key step. The drawing accompanying this specification represents the preparation of racemic 3-hydroxy-4-tosyloxybutanenitrile, its lipase-mediated kinetic resolution and its successful application in the preparation of (R)-GABOB and (R)-carnitine.
    Type: Application
    Filed: November 29, 2005
    Publication date: September 17, 2009
    Applicant: Council of Scientific & Industrial Research
    Inventors: Ahmed Kamal, Gollapalli Bhasker Ramesh Khanna, Tadiparthi Krishnaji, Rondla Ramu
  • Patent number: 7476664
    Abstract: The present invention provides a novel bis 2-difluoro pyrrolo[2,1-c][1,4]benzodiazepine of formula VII wherein, n is 3 to 10. novel bis 2-difluoro pyrrolo[2,1-c][1,4]benzodiazepine of formula VII exhibits biding affinity with calf thymus (CT) DNA at a molar ratio of 1:5 in aqueous sodium phosphate buffer at pH of about 7.00. The present invention further provides a process for the preparation of novel bis 2-difluoro pyrrolo[2,1-c][1,4]benzodiazepine of formula VII.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: January 13, 2009
    Inventors: Ahmed Kamal, Depatla Rajasekhar Reddy, Rajendar Rajendar
  • Patent number: 7465724
    Abstract: The present invention provides novel bis-pyrrolo[2,1-c][1,4]benzodiazepine-anthraquinone conjugates of general formula V, useful as potential antitumour agents against human cancer cell lines. The present invention further provides a process for the preparation of novel bis-pyrrolo[2,1 -c][1,4]benzodiazepine-anthraquinone conjugates of general formula V. wherein n=3, 4, or 5.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: December 16, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Rondla Ramu, Gollapalli Bhasker Ramesh Khanna
  • Patent number: 7374926
    Abstract: The present invention particularly relates to a chemoenzymatic process for the stereoselective preparation of both enantiomers of 3-hydroxy-4-trityloxy butanenitrile key intermediates for the preparation of (R)-GABOB by lipase mediated kinetic resolution of its racemates and their effective application in the enantioconvergent synthesis of (R)-GABOB.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: May 20, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Gollapalli B. Ramesh Khanna, Krishnaji Tadiparthi, Ramu Rondla
  • Patent number: 7312210
    Abstract: The present invention provides novel pyrrolo [2,1-c][1,4]benzodiazepine compounds. This invention also provides a process for the preparation of novel pyrrolo[2,1-c][1,4]benzodiazepine compounds. These novel pyrrolo [2,1-c][1,4]benzodiazepine compounds are useful as antitumor agents. It also provides a process for the preparation of 7-methoxy-8-{n-[4-(2-oxo-2H-4-chromenyl)piperazino]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one and 7-methoxy-8-{n-[4-(7-alkoxy-8-methyl-2-oxo-2H-4-chromenyl)piperazino]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]. benzodiazepine-5-one with aliphatic chain length variations for these compounds.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: December 25, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Ankati Hari Babu, Adhi Venkata Ramana, Earla Vijaya Bharathi
  • Publication number: 20070272381
    Abstract: A multi-ply fibrous structure product having two or more plies of fibrous structure where at least one of the plies has a plurality of domes formed during the papermaking process and there are from about 10 to about 1000 domes per square inch of the product. At least one of the plies of the multi-ply fibrous structure has a plurality of embossments thereon with a total embossment area of from about 3% to about 15%. The embossments may be arranged such that they define non-geometric foreground patterns of unembossed cells.
    Type: Application
    Filed: May 2, 2007
    Publication date: November 29, 2007
    Inventors: Ahmed Kamal Elony, Osman Polat, Jeffrey Glen Sheehan, Markus Wilhelm Altmann, Ward William Ostendorf, Kevin Mitchell Wiwi, Steven Lee Barnholtz, Douglas Jay Barkey
  • Publication number: 20070259858
    Abstract: The present invention provides novel bis-pyrrolo[2,1-c][1,4]benzodiazepine-anthraquinone conjugates of general formula V, useful as potential antitumour agents against human cancer cell lines. The present invention further provides a process for the preparation of novel bis-pyrrolo[2,1 -c][1,4]benzodiazepine-anthraquinone conjugates of general formula V. wherein n=3, 4, or 5.
    Type: Application
    Filed: February 12, 2007
    Publication date: November 8, 2007
    Applicant: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Rohdla Ramu, Gollapalli Bhasker Khanna
  • Patent number: 7292075
    Abstract: A pad driver is presented that in one form is capable of driving a wide range of capacitive loads with constant rise and fall times, over a wide range of temperature and process corners. A desirable form of the pad driver is characterized by the ability to charge and discharge rail-to-rail with a constant charging and discharging rate over the whole charging and discharging cycles. Furthermore, desirably the driver is independent of any load present at the output pad.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: November 6, 2007
    Inventors: Ahmed Kamal Abdel-Hamid, Tamer Ali Abdel-Rahim
  • Publication number: 20070249828
    Abstract: The present invention provides a novel bis 2-difluoro pyrrolo[2,1-c][1,4]benzodiazepine of formula VII wherein, n is 3 to 10. novel bis 2-difluoro pyrrolo[2,1-c][1,4]benzodiazepine of formula VII exhibits biding affinity with calf thymus (CT) DNA at a molar ratio of 1:5 in aqueous sodium phosphate buffer at pH of about 7.00. The present invention further provides a process for the preparation of novel bis 2-difluoro pyrrolo[2,1-c][1,4]benzodiazepine of formula VII.
    Type: Application
    Filed: March 7, 2007
    Publication date: October 25, 2007
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Ahmed Kamal, Depatla Reddy, Rajendar Rajendar
  • Publication number: 20070082891
    Abstract: The present invention provides novel pyrrolo [2,1-c][1,4]benzodiazepine compounds. This invention also provides a process for the preparation of novel pyrrolo[2,1-c][1,4]benzodiazepine compounds. These novel pyrrolo [2,1-c][1,4]benzodiazepine compounds are useful as antitumor agents. It also provides a process for the preparation of 7-methoxy-8-{n-[4-(2-oxo-2H-4-chromenyl)piperazino]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one and 7-methoxy-8-{n-[4-(7-alkoxy-8-methyl-2-oxo-2H-4-chromenyl)piperazino]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]. benzodiazepine-5-one with aliphatic chain length variations for these compounds.
    Type: Application
    Filed: March 3, 2006
    Publication date: April 12, 2007
    Inventors: Ahmed Kamal, Ankati Babu, Adhi Ramana, Earla Bharathi
  • Publication number: 20070066837
    Abstract: This invention relates to podophyllotoxin derivatives, more particularly to 4?-amino and 4?-amido derivatives of podophyllotoxin and 4?-O-demethylepipodophyllotoxin, which are useful for the treatment of tumors. Processes for the preparation of the compounds disclosed herein, pharmaceutical compositions containing these compounds, and methods for treating tumors are provided. The invention further relates to stereoselective compounds of podophyllotoxin and 4?-O-demethylepipodophyllotoxin derivatives.
    Type: Application
    Filed: February 13, 2004
    Publication date: March 22, 2007
    Inventors: Ahmed Kamal, Mohammed Arifuddin, Banala Kumar, Sunanda Dastidar
  • Patent number: 7189710
    Abstract: The present invention relates to novel 2-fluoro-pyrrolo[2,1-c][1,4]benzodiazepine dimers useful as antitumour agents and to a process for the preparation thereof.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: March 13, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Peram Surakattula Murali Mohan Reddy, Depatla Rajashekhar Reddy
  • Patent number: 7173026
    Abstract: The present invention relates to synthesis of pyrrolo[2,1-c][1,4]benzodiazepine-anthraquinone hybrids (V) wherein n=3,4; R=H, OH and to their use as antitumour agents.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: February 6, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Gollapalli B. Khanna Ramesh, Ramu Rondla
  • Patent number: 7087641
    Abstract: The present invention provides a new class of compounds 4?-1?-[{2?-benzoyl substituted}anilino] podophyllotoxin exhibiting anti cancer activity and a process for preparing the same.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: August 8, 2006
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ahmed Kamal, Peram Surakattula Murali Mohan Reddy
  • Publication number: 20060141606
    Abstract: The present invention particularly relates to a chemoenzymatic process for the stereoselective preparation of both enantiomers of 3-hydroxy-4-trityloxy butanenitrile key intermediates for the preparation of (R)-GABOB by lipase mediated kinetic resolution of its racemates and their effective application in the enantioconvergent synthesis of (R)-GABOB.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 29, 2006
    Applicant: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Gollapalli Khanna, Krishnaji Tadiparthi, Ramu Rondla
  • Publication number: 20060142272
    Abstract: The present invention relates to synthesis of pyrrolo[2,1-c][1,4]benzodiazepine-anthraquinone hybrids (V) wherein n=3,4; R?H, OH and to their use as antitumour agents
    Type: Application
    Filed: December 27, 2004
    Publication date: June 29, 2006
    Applicant: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Gollapalli Khanna Ramesh, Ramu Rondla
  • Patent number: 7056913
    Abstract: The present invention provides novel pyrrolo-[2,1-c][1,4]benzodiazepine hybrids useful as anti-tumour agents and a process for the preparation thereof.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: June 6, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Srinivas Olepu, Ramulu Poddutoori, Ramesh Gujjar, Praveen Kumar Pogula
  • Patent number: 7045341
    Abstract: A chemoenzymatic process for the stereoselective preparation of both the (R) and (S) enantiomers of 3-hydroxy-3-(2-thienyl) propanenitrile has been developed. These optically pure key intermediates were prepared by enzymatic resolution of (±)3-hydroxy-3-(2-thienyl) propanenitrile both by transesterification and by hydrolysis reaction which were then transformed to both enantiomers of duloxetine.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: May 16, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ahmed Kamal, Bhasker Ramesh Khanna Gollapalli, Ramu Rondla, Venkateswara Rao Maddamsetty