Patents by Inventor William Leong

William Leong 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: 20230277519
    Abstract: The present invention relates to IRAKIMiD degraders, their liquid formulations, and methods of use thereof for treating cancer.
    Type: Application
    Filed: January 13, 2023
    Publication date: September 7, 2023
    Inventors: Jared Gollob, Jeffrey Davis, Ashwin Gollerkeri, Reginald EWESUEDO, Alice McDonald, Vashali Dixit, Shu-Pei Wu, Michele Mayo, Haojing Rong, Sagar Agarwal, Bradley Enerson, Patrick Henrick, Rachelle Perea, Christopher Ho, William Leong, Duncan Walker
  • Publication number: 20230257399
    Abstract: The present invention provides compounds, compositions thereof, and processes for preparing same.
    Type: Application
    Filed: October 28, 2022
    Publication date: August 17, 2023
    Inventors: William LEONG, Dharyl Charles WILSON
  • Publication number: 20220185766
    Abstract: The present invention refers to a process for preparing a compound of formula (I) or a pharmaceutically acceptable salt thereof: wherein R is (C3-C10)alkyl, or ?-trifluoro(C3-C10)alkyl; R1 and R2 are, independently, hydrogen, hydroxy, (C1-C8) alkoxy, (C1-C8) alkylthio, halo, trifluoromethyl or 2,2,2-trifluoroethyl; or one of R1 and R2 is in ortho position to the R—O— group and, taken together with the same R—O—, represents a Formula (A) group where R0 is (C2-C9)alkyl; R3 and R4 are, independently, hydrogen, (C1-C4)alkyl; or R4 is hydrogen and R5 is a group selected from —CH2—OH, —CH2—O—(C1-C6)alkyl, —CH(CH3)—OH, —(CH2)2—S—CH3, benzyl and 4-hydroxybenzyl; or R4 and R5, taken together with the adjacent carbon atom, form a (C3-C6)cycloalkyl residue; R5 and R6 are independently hydrogen or (C1-C6)alkyl; or taken together with the adjacent nitrogen atom form a 5-6 membered monocyclic saturated heterocycle, optionally containing one additional heteroatom chosen among —O—, —S— and —NR7— where R7 is hydrogen or (C1-C
    Type: Application
    Filed: April 14, 2020
    Publication date: June 16, 2022
    Applicant: Newron Pharmaceuticals S.p.A.
    Inventors: William Leong, Dongxiao Lan, Weifang Zhang, Xiang Fang, Sizhong Wu
  • Patent number: 10584514
    Abstract: The invention is useful for upgrading a mechanical handle assembly to an electronic handle assembly without the need to remove the handle from the door or the like to which the handle is attached. The handle assembly (100) is of the type which is mountable to a surface of a door. Handle (18?) is moveable between a locked position and an unlocked position. A first housing useful for a mechanical locking handle is replaceable by a second housing (80) during conversion of the handle assembly from a mechanical version to an electronic version. Handle (18?) is received at least partially within the housing (80) and is substantially within housing (80) in the locked position. In the unlocked position, handle (18?) protrudes from the housing (80) and can be cause to swing sideways. Opening of the door when handle (18?) is in the locked position is prevented by a lock (24?). When converted to the electronic version, lock (24?) may remain but is capable of being unlocked by electronic actuation means (44, 78, 82).
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: March 10, 2020
    Assignee: TELEZYGOLOGY INC.
    Inventors: William Leong, Cary Maguire, Glenn Bevan, Craig Roughen
  • Publication number: 20150300047
    Abstract: The invention is useful for upgrading a mechanical handle assembly to an electronic handle assembly without the need to remove the handle from the door or the like to which the handle is attached. The handle assembly (100) is of the type which is mountable to a surface of a door. Handle (18?) is moveable between a locked position and an unlocked position. A first housing useful for a mechanical locking handle is replaceable by a second housing (80) during conversion of the handle assembly from a mechanical version to an electronic version. Handle (18?) is received at least partially within the housing (80) and is substantially within housing (80) in the locked position. In the unlocked position, handle (18?) protrudes from the housing (80) and can be cause to swing sideways. Opening of the door when handle (18?) is in the locked position is prevented by a lock (24?). When converted to the electronic version, lock (24?) may remain but is capable of being unlocked by electronic actuation means (44, 78, 82).
    Type: Application
    Filed: November 21, 2013
    Publication date: October 22, 2015
    Applicant: Telezygology, Inc.
    Inventors: William Leong, Cary Maguire, Glenn Bevan, Craig Roughen
  • Patent number: 7728135
    Abstract: The present invention is directed to the synthesis of 4-[4-[(R)-[1-[cyclopropylsulfonyl)-4-piperidinyl](3-fluorophenyl)methyl]-3(S)-methyl-1-piperazinyl]-1-[(4,6-dimethyl-5-pyrimidinyl)carbonyl]-4-methylpiperidine], and intermediates therefor from readily available starting materials by a novel route.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: June 1, 2010
    Assignee: Schering Corporation
    Inventors: Xiongwei Shi, Man Zhu, William Leong, Vilas Dahanukar, Ilia A. Zavialov, Cecelia Proietti, Shannon Zhao, Hong-Chang Lee, Yi Liu, Hoa N. Nguyen, Wenxue Wu, Bosco D'Sa, Feng Liang, Loc Thanh Tran
  • Publication number: 20100036125
    Abstract: The present invention is directed to the synthesis of 4-[4-[(R)-[1-[cyclopropylsulfonyl)-4-piperidinyl](3-fluorophenyl)methyl]-3(S)-methyl-1-piperazinyl]-1-[(4,6-dimethyl-5-pyrimidinyl)carbonyl]-4-methylpiperidine], and intermediates therefor from readily available starting materials by a novel route.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 11, 2010
    Inventors: Xiongwei Shi, Man Zhu, William Leong, Vilas Dahanukar, Ilia A. Zavialov, Cecilia Proietti, Shannon Zhao, Hong-Chang Lee, Yi Liu, Hoa N. Nguyen, Wenxue Wu, Bosco D'Sa, Feng Liang, Loc Thanh Tran
  • Patent number: 7521452
    Abstract: The present invention is generally directed to a process to directly prepare pharmaceutically acceptable salts enriched with respect to selected rotameric salts of a basic compound, by creative choice of an acid and a solvent medium. The process is particularly useful in preparing specific rotamers of pharmaceutically useful salts in desired preponderance of a rotamer.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: April 21, 2009
    Assignee: Schering Corporation
    Inventors: Wenxue Wu, Loc Thanh Tran, Bosco D'Sa, Feng Liang, William Leong, Hong-Chang Lee, Kevin Klopfer, Vijay Sabesen
  • Publication number: 20090093496
    Abstract: The present invention is generally directed to a process to directly prepare pharmaceutically acceptable salts enriched with respect to selected rotameric salts of a basic compound, by creative choice of an acid and a solvent medium. The process is particularly useful in preparing specific rotamers of pharmaceutically useful salts in desired preponderance of a rotamer.
    Type: Application
    Filed: December 10, 2008
    Publication date: April 9, 2009
    Inventors: Wenxue Wu, Loc Thanh Tran, Bosco D'Sa, Feng Liang, William Leong, Hong-Chang Lee, Kevin Klopfer, Vijay Sabesan
  • Publication number: 20060258863
    Abstract: The present invention is directed to the synthesis of 4-[4-[(R)-[1-[cyclopropylsulfonyl)-4-piperidinyl](3-fluorophenyl)methyl]-3(S)-methyl-1-piperazinyl]-1-[(4,6-dimethyl-5-pyrimidinyl)carbonyl]-4-methylpiperidine], and intermediates therefor from readily available starting materials by a novel route.
    Type: Application
    Filed: January 5, 2006
    Publication date: November 16, 2006
    Inventors: Xiongwei Shi, Man Zhu, William Leong, Vilas Dahanukar, Ilia Zavialov, Cecilia Proletei, Shannon Zhao, Hong-Chang Lee, Yi Liu, Hoa Nguyen, Wenxue Wu, Bosco D'Sa, Feng Liang, Loc Tran
  • Publication number: 20060241295
    Abstract: The present invention is generally directed to a process to directly prepare pharmaceutically acceptable salts enriched with respect to selected rotameric salts of a basic compound, by creative choice of an acid and a solvent medium. The process is particularly useful in preparing specific rotamers of pharmaceutically useful salts in desired preponderance of a rotamer.
    Type: Application
    Filed: January 5, 2006
    Publication date: October 26, 2006
    Inventors: Wenxue Wu, Loc Tran, Bosco D'Sa, Feng Liang, William Leong, Hong-Chang Lee, Kevin Klopfer, Vijay Sabesen
  • Patent number: 6992189
    Abstract: In its several embodiments, this invention discloses novel processes to prepare the compounds of formula II and formula IV:
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: January 31, 2006
    Assignee: Schering Corporation
    Inventors: William Leong, Minzhang Chen, Bosco A. D'sa, Man Zhu, Tong Xiao, Xiongwei Shi, Suhan Tang, Dinesh Gala, Andrew J. Goodman, Christopher M. Nielsen, Gary M. Lee, Juan A. Gamboa, Andrew D. Jones
  • Patent number: 6958337
    Abstract: The crystalline polymorph Form I of (?)-4-[4-[4-[4-[[(2R-cis)-5-(2,4-difluorophenyl)tetrahydro-5-(1H-1,2,4-triazol-1-ylmethyl)furan-3-yl]methoxy]phenyl]-1-piperazinyl]phenyl-2,4-dihydro-2-[(S)-1-ethyl-2(S)-hydroxylpropyl]-3H-1,2,4-triazol-3-one represented by the formula I pharmaceutical compositions containing such a polymorph and methods of using such a polymorph to treat fungal infections in mammals are disclosed.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: October 25, 2005
    Assignee: Schering Corporation
    Inventors: David R. Andrews, William Leong, Anantha Sudhakar
  • Patent number: 6936718
    Abstract: In one embodiment, the present invention discloses a process to directly prepare an unequal ratio of specific, preferred rotamer or rotameric pair of an acid salt from a basic compound, by creative choice of a solvent medium. The process is particularly useful in preparing desired rotamers of pharmaceutically useful salts.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: August 30, 2005
    Assignee: Schering Corporation
    Inventors: Minzhang Chen, Bosco D'sa, William Leong, Suhan Tang
  • Publication number: 20050187248
    Abstract: In its several embodiments, this invention discloses novel processes to prepare the compounds of formula II and formula IV:
    Type: Application
    Filed: March 24, 2005
    Publication date: August 25, 2005
    Inventors: William Leong, Minzhang Chen, Bosco D'sa, Man Zhu, Tong Xiao, Xiongwei Shi, Suhan Tang, Dinesh Gala, Andrew Goodman, Christopher Nielsen, Gary Lee, Juan Gamboa, Andrew Jones
  • Patent number: 6897679
    Abstract: A programmable logic array integrated circuit has a number of programmable logic modules which are grouped together in a plurality of logic array blocks (“LABs”). The LABs are arranged on the circuit in a two dimensional array. A conductor network is provided for interconnecting any logic module with any other logic module. In addition, adjacent or nearby logic modules are connectable to one another for such special purposes as providing a carry chain between logic modules and/or for connecting two or more modules together to provide more complex logic functions without having to make use of the general interconnection network. Another network of so-called fast or universal conductors is provided for distributing widely used logic signals such as clock and clear signals throughout the circuit. Multiplexers can be used in various ways to reduce the number of programmable interconnections required between signal conductors.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: May 24, 2005
    Assignee: Altera Corporation
    Inventors: Richard G. Cliff, L. Todd Cope, Cameron R. Mc Clintock, William Leong, James A. Watson, Joseph Huang, Bahram Ahanin
  • Publication number: 20040204423
    Abstract: The crystalline polymorph Form I of (−)-4-[4-[4-[4-[[(2R-cis)-5-(2,4-difluorophenyl)tetrahydro-5-(1H-1,2,4-triazol-1-ylmethyl)furan-3-yl]methoxy]phenyl]-1-piperazinyl]phenyl-2,4-dihydro-2-[(S)-1-ethyl-2(S)-hydroxylpropyl]-3H-1,2,4-triazol-3-one represented by the formula I 1
    Type: Application
    Filed: February 25, 2004
    Publication date: October 14, 2004
    Inventors: David R. Andrews, William Leong, Anantha Sudhakar
  • Publication number: 20040066212
    Abstract: A programmable logic array integrated circuit has a number of programmable logic modules which are grouped together in a plurality of logic array blocks (“LABs”). The LABs are arranged on the circuit in a two dimensional array. A conductor network is provided for interconnecting any logic module with any other logic module. In addition, adjacent or nearby logic modules are connectable to one another for such special purposes as providing a carry chain between logic modules and/or for connecting two or more modules together to provide more complex logic functions without having to make use of the general interconnection network. Another network of so-called fast or universal conductors is provided for distributing widely used logic signals such as clock and clear signals throughout the circuit. Multiplexers can be used in various ways to reduce the number of programmable interconnections required between signal conductors.
    Type: Application
    Filed: January 31, 2003
    Publication date: April 8, 2004
    Applicant: Altera Corporation
    Inventors: Richard G. Cliff, L. Todd Cope, Cameron R. Mc Clintock, William Leong, James A. Watson, Joseph Huang, Bahram Ahanin
  • Patent number: 6713481
    Abstract: The crystalline polymorph Form I of (−)-4-[4-[4-[4-[[(2R-cis)-5-(2,4-difluorophenyl)tetrahydro-5-(1H-1,2,4-triazol-1-ylmethyl)furan-3-yl]methoxy]phenyl]-1-piperazinyl]phenyl-2,4-dihydro-2-[(S)-1-ethyl-2(S)-hydroxylpropyl]-3H-1,2,4-triazol-3-one represented by the formula I pharmaceutical compositions containing such a polymorph and methods of using such a polymorph to treat fungal infections in mammals are disclosed.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: March 30, 2004
    Inventors: David R. Andrews, William Leong, Anantha Sudhakar
  • Patent number: RE38651
    Abstract: A programmable variable depth and width random-access memory circuit is provided. The memory circuit contains rows and columns of memory cells for storing data. A row decoder is used to address individual rows of the memory cells. Column address circuitry receives a column address signal and a width and depth selection signal. A column decoder within the column address circuitry addresses one or more columns of memory cells of the RAM array based on the selected width of the array. The output of the column decoder is routed to the appropriate column or columns of memory cells by a pattern of fixed connections and a group of programmable multiplexers. The number of data output lines to which data signals are provided is determined by the selected width of the RAM array. The output circuitry contains a group of programmable demultiplexers and a routing array having a pattern of fixed connections suitable for passing data signals from the RAM array to the selected number of data output lines.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: November 9, 2004
    Assignee: Altera Corporation
    Inventors: Chiakang Sung, Wanli Chang, Joseph Huang, Richard G. Cliff, L. Todd Cope, Cameron R. McClintock, William Leong, James A. Watson, Bahram Ahanin