Patents by Inventor Daniel T. Chu

Daniel T. Chu 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: 20240081991
    Abstract: Delivery systems for expandable and stented implants include adjustable tensioning members that control the expansion of the implant along the length of the implant. The tensioning members are wound onto one or more rotors located on the distal segment of the delivery system, which are rotated to unwind the tensioning members and incrementally expand the implant. Positioning mechanisms are also provided to adjust the position and orientation of the implant during delivery.
    Type: Application
    Filed: February 10, 2022
    Publication date: March 14, 2024
    Inventors: Daniel T. Wallace, Peter W. Gregg, Jeremy J. Boyette, Evelyn N. Haynes, Spencer C. Noe, Diana L. Chu
  • Patent number: 6274715
    Abstract: Compounds, or pharmaceutically acceptable salts and esters thereof, of the formula: wherein A, B, D and E, R1, R2, and Z are specifically defined, having antibacterial activity, pharmaceutical compositions containing said compounds, treatment of bacterial infections with such compositions, and processes for the preparation of the compounds.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: August 14, 2001
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Ly Tam Phan, Daniel T. Chu, Kenneth P. Spina, Robert Hallas, Richard L. Elliott, Michael Tufano
  • Patent number: 6147197
    Abstract: Antimicrobial compounds having the formula ##STR1## as well as pharmaceutically acceptable salts, esters or prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: November 14, 2000
    Inventors: Yat Sun Or, Zhenkun Ma, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner, George Griesgraber
  • Patent number: 6124269
    Abstract: Novel 2-halo-6-O-substituted ketolide derivatives and pharmaceutically acceptable salts and esters thereof having antibacterial activity having a formula ##STR1## compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier, a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of the invention, and processes for their preparation.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: September 26, 2000
    Assignee: Abbott Laboratories
    Inventors: Ly Tam Phan, Yat Sun Or, Daniel T. Chu, Jacob J. Platter, Yan Chen, Richard F. Clark
  • Patent number: 6075133
    Abstract: Antimicrobial compounds having the formula as well as pharmaceutically acceptable sats, esters or prodrugs thereof, pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: June 13, 2000
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Zhenkun Ma, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner, George Griesgraber
  • Patent number: 6075011
    Abstract: Antimicrobial compounds having the formula ##STR1## as well as the pharmaceutically acceptable salts, esters and prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: June 13, 2000
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Richard F. Clark, Zhenkun Ma, George Griesgraber, Leping Li, Daniel T. Chu
  • Patent number: 6046171
    Abstract: Novel 6,11-bridged erythromycin compounds and pharmaceutically acceptable salts and esters thereof having antibacterial activity having a formula ##STR1## compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier, a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of the invention, and processes for their preparation.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: April 4, 2000
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, George Griesgraber, Leping Li, Daniel T. Chu
  • Patent number: 6034069
    Abstract: Novel 3'-N-modified 6-O-substituted erythromycin ketolide compounds and pharmaceutically acceptable salts and esters thereof having antibacterial activity having a formula ##STR1## compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier, as well as a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of the invention.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: March 7, 2000
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Zhenkun Ma, Daniel T. Chu
  • Patent number: 6028181
    Abstract: Antimicrobial compounds having the formula ##STR1## as well as pharmaceutically acceptable salts, esters or prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: February 22, 2000
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Zhenkun Ma, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner, George Griesgraber
  • Patent number: 5922683
    Abstract: Novel multicyclic erythromycin compounds and pharmaceutically acceptable salts and esters thereof having antibacterial activity having a formula ##STR1## pharmaceutical compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier, as well as a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of formula (I).
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: July 13, 1999
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, George Griesgraber, Daniel T. Chu
  • Patent number: 5866549
    Abstract: Antimicrobial compounds having the formula ##STR1## as well as pharmaceutically acceptable salts, esters or prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: February 2, 1999
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Zhenkun Ma, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner, George Griesgraber
  • Patent number: 5837868
    Abstract: A process for the preparation of chiral 3-aminopyrrolidine and analogous bicyclic derivatives from dihydroxy olefins by treatment with titanium isopropoxide, an optically active tartrate ester and tert-butyl hydroperoxide, followed by subsequent alkylation of the intermediate with an alkyl or alkenyl magnesium halide, then pyrrolidine ring formation by condensation with an arylmethylamine, subsequent chiral replacement of a ring hydroxyl group with an amino group with further protection thereof, optional additional substitution closing of the second ring, and hydrogenolysis to remove a ring-nitrogen protecting group.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: November 17, 1998
    Assignee: Abbott Laboratories
    Inventors: Wei-Bo Wang, Qun Li, Daniel T. Chu, Lisa Anne Hasvold
  • Patent number: 5789591
    Abstract: A process for preparing a compound having the formula: ##STR1## wherein R is selected from the group consisting of C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 -C.sub.6 -cycloalkylmethyl, C.sub.1 -C.sub.6 -alkyl, allyl and 2-methoxyethyl, by reacting: ##STR2## under defined conditions with subsequent stepwise reactions of the respective intermediate compounds with a malonic acid diester, POCl.sub.3, and by heating the final intermediate in a high boiling solvent.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: August 4, 1998
    Assignee: Abbott Laboratories
    Inventors: Daniel T. Chu, David Allen Degoey, David J. Grampovnik, Larry Lewis Klein, Paul A. Lartey, Christina Louise Leone, Sheela Albert Thomas, Ming Clinton Yeung
  • Patent number: 5780604
    Abstract: Disclosed are the antibacterial compounds having the formulas: ##STR1## or pharmaceutically acceptable salts and esters thereof. Also disclosed are the processes for preparing compounds of formulas (I), and II) of the invention, pharmaceutical compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier, as well as a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of the invention.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: July 14, 1998
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Richard F. Clark, Daniel T. Chu
  • Patent number: 5780605
    Abstract: Novel multicyclic erythromycin compounds and pharmaceutically acceptable salts and esters thereof having antibacterial activity having a formula ##STR1## compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically acceptable carrier, as well as a method for treating bacterial infections by administering to a mammal a pharmaceutical composition containing a therapeutically-effective amount of a compound of the invention.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: July 14, 1998
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner
  • Patent number: 5750510
    Abstract: Novel 3-descladinose-2,3-anhydroerythromycin compounds and pharmaceutically acceptable salts and esters thereof having antibacterial activity.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: May 12, 1998
    Assignee: Abbott Laboratories
    Inventors: Richard L. Elliott, Yat Sun Or, Daniel T. Chu, George W. Griesgraber, Jacob J. Plattner, Daisy Pireh
  • Patent number: 5747466
    Abstract: A compound selected from the group: ##STR1## wherein A, B, V, W, X and R.sup.8 are specifically defined; pharmaceutical compositions thereof; a method of treating or preventing bacterial infections by administering therapeutically effective pharmaceutical compositions thereof; and a process for the preparation thereof.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: May 5, 1998
    Assignee: Abbott Laboratories
    Inventors: Richard L. Elliott, Yat Sun Or, Daisy Pireh, Daniel T. Chu
  • Patent number: 5726182
    Abstract: Antibacterial compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, selected preferred examples of which include those compounds whereinA is .dbd.CR.sup.6 --;R.sup.1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl;R.sup.2 is selected from the group consisting of ##STR2## R.sup.3 is halogen; R.sup.4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group;R.sup.5 is hydrogen, loweralkyl, halo(loweralkyl), or --NR.sup.13 R.sup.14 ; andR.sup.6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl),as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 10, 1998
    Assignee: Abbott Laboratories
    Inventors: Daniel T. Chu, Qun Li, Curt S. Cooper, Anthony K. L. Fung, Cheuk M. Lee, Jacob J. Plattner, Zhenkun Ma, Wei-Bo Wang
  • Patent number: 5703244
    Abstract: A process for the preparation of chiral 3-aminopyrrolidine and analogous bicyclic derivatives from dihydroxy olefins by treatment with titanium isopropoxide, an optically active tartrate ester and tert-butyl hydroperoxide, followed by subsequent alkylation of the intermediate with an alkyl or alkenyl magnesium halide, then pyrrolidine ring formation by condensation with an arylmethylamine, subsequent chiral replacement of a ring hydroxyl group with an amino group with further protection thereof, optional additional substitution closing of the second ring, and hydrogenolysis to remove a ring-nitrogen protecting group.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: December 30, 1997
    Assignee: Abbott Laboratories
    Inventors: Qun Li, Wei-Bo Wang, Daniel T. Chu, Lisa Anne Hasvold
  • Patent number: RE39591
    Abstract: Antimicrobial compounds having the formula as well as pharmaceutically acceptable salts, esters or prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: April 24, 2007
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Zhenkun Ma, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner, George Griesgraber