Patents by Inventor Patrick Kelleher

Patrick Kelleher 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).

  • IMPROVED PROCESS FOR RECOVERING N,N-DIMETHYLFORMAMIDE (DMF) FROM AN AQUEOUS PROCESS STREAM
    Publication number: 20250243149
    Abstract: The invention relates to an improved process for recovering N,N-Dimethylformamide (DMF) from an aqueous process stream by adjusting the pH, extracting with Chloroform and subsequent distillation/rectification.
    Type: Application
    Filed: April 3, 2023
    Publication date: July 31, 2025
    Inventors: Chao Wang, Sean P. O'Hara, Patrick Kelleher, David A. Cortes, Erika Maria Scheele, Claudio P. Ribeiro
  • Preparation of pregabalin and related compounds
    Patent number: 8134023
    Abstract: Materials and methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: March 13, 2012
    Assignee: Pfizer Inc
    Inventors: Shanghui Hu, Carlos Alberto Martinez, Junhua Tao, William Eugene Tully, Patrick Kelleher, Yves Dumond
  • Preparation of Pregabalin and Related Compounds
    Publication number: 20120015412
    Abstract: Materials and methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 19, 2012
    Inventors: Shanghui Hu, Carlos Alberto Martinez, Junhua Tao, William Eugene Tully, Patrick Kelleher, Yves Dumond
  • Preparation of pregabalin and related compounds
    Patent number: 8044227
    Abstract: Materials and methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: October 25, 2011
    Assignee: Pfizer Inc.
    Inventors: Shanghui Hu, Carlos Alberto Martinez, Junhua Tao, William Eugene Tully, Patrick Kelleher, Yves Dumond
  • Preparation of Pregabalin and Related Compounds
    Publication number: 20110065168
    Abstract: Materials and methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 17, 2011
    Inventors: Shanghui Hu, Carlos Alberto Martinez, Junhua Tao, William Eugene Tully, Patrick Kelleher, Yves Dumond
  • Preparation of pregabalin and related compounds
    Patent number: 7838686
    Abstract: Materials and Methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 23, 2010
    Assignee: Pfizer Inc.
    Inventors: Shanghui Hu, Carlos Alberto Martinez, Junhua Tao, William Eugene Tully, Patrick Kelleher, Yves Dumond
  • Preparation of Pregabalin and Related Compounds
    Publication number: 20090042262
    Abstract: Materials and Methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Application
    Filed: October 20, 2008
    Publication date: February 12, 2009
    Inventors: Shangui Hu, Carlos Alberto Martinez, Junhua Tao, William Eugene Tully, Patrick Kelleher, Yves Dumond
  • Ball penetrometer for soft soils testing
    Publication number: 20070125158
    Abstract: A ball penetrometer probe for in situ measurement of soft soil properties, particularly in the seabed, comprises a spherical body and slender shaft assembly, and either individually or in combination, an anti-friction sleeve enclosing the shaft and/or a peripheral porous ring on the spherical body with connecting internal passages through the shaft assembly, the shaft being adapted to attach to an electronic transducer module. The ball penetrometer is deployed to penetrate the soil bed, to continuously measure the soil bearing forces resisting penetration and withdrawal of the ball, to optionally measure the pore water pressure of the soil in contact with the ball and to transmit the measurement data from the probe to a remote operating station, either by wireless means such as an acoustic transducer or via a wired electrical connection.
    Type: Application
    Filed: February 25, 2005
    Publication date: June 7, 2007
    Inventors: Patrick Kelleher, Stephen Payor, James Shiels
  • Preparation of pregabalin and related compounds
    Publication number: 20050283023
    Abstract: Materials and methods for preparing (S)-(+)-3-aminomethyl-5-methyl-hexanoic acid and structurally related compounds via enzymatic kinetic resolution are disclosed.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 22, 2005
    Inventors: Shanghui Hu, Carlos Martinez, Junhua Tao, William Tully, Patrick Kelleher, Yves Dumond