Patents by Inventor Daniel P. Walker

Daniel P. Walker 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).

  • Patent number: 10807936
    Abstract: The present disclosure relates, in general, to 5-halo-3,6-dichlorosalicylic acid compounds, 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 5-halo-3,6-dichlorosalicylic acid compounds, processes for preparing 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 3,6-dichlorosalicylic acid compounds, and processes that employ such compounds as intermediates in the preparation of the herbicide dicamba.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: October 20, 2020
    Assignee: Monsanto Technology LLC
    Inventors: Terri L. Boehm, Mangesh Bore, Jeffery N. Carroll, G. Davis Harris, Jr., Matthew D. McReynolds, Justin R. Struble, Daniel P. Walker
  • Publication number: 20200181055
    Abstract: The present disclosure relates, in general, to 5-halo-3,6-dichlorosalicylic acid compounds, 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 5-halo-3,6-dichlorosalicylic acid compounds, processes for preparing 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 3,6-dichlorosalicylic acid compounds, and processes that employ such compounds as intermediates in the preparation of the herbicide dicamba.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 11, 2020
    Applicant: Monsanto Technology LLC
    Inventors: Terri L. Boehm, Mangesh Bore, Jeffery N. Carroll, G. Davis Harris, JR., Matthew D. McReynolds, Justin R. Struble, Daniel P. Walker
  • Patent number: 10519092
    Abstract: The present disclosure relates, in general, to 5-halo-3,6-dichlorosalicylic acid compounds, 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 5-halo-3,6-dichlorosalicylic acid compounds, processes for preparing 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 3,6-dichlorosalicylic acid compounds, and processes that employ such compounds as intermediates in the preparation of the herbicide dicamba.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 31, 2019
    Assignee: Monsanto Technology LLC
    Inventors: Terri L. Boehm, Mangesh Bore, Jeffery N. Carroll, G. Davis Harris, Jr., Matthew D. McReynolds, Justin R. Struble, Daniel P. Walker
  • Patent number: 10239857
    Abstract: Provided herein are processes for the preparation of 2-thiophenecarbonyl chloride, which is useful, for example, in the preparation of 3,5-disubstituted-1,2,4-oxadiazoles, such as tioxazafen (3-phenyl-5-(2-thienyl)-1,2,4-oxadiazole).
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: March 26, 2019
    Assignee: Monsanto Technology LLC
    Inventors: Daniel P. Walker, William H. Miller
  • Publication number: 20180162830
    Abstract: Provided herein are processes for the preparation of 2-thiophenecarbonyl chloride, which is useful, for example, in the preparation of 3,5-disubstituted-1,2,4-oxadiazoles, such as tioxazafen (3-phenyl-5-(2-thienyl)-1,2,4-oxadiazole).
    Type: Application
    Filed: March 31, 2016
    Publication date: June 14, 2018
    Applicant: Monsanto Technology LLC
    Inventors: Daniel P. Walker, William H. Miller
  • Publication number: 20180155265
    Abstract: The present disclosure relates, in general, to 5-halo-3,6-dichlorosalicylic acid compounds, 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 5-halo-3,6-dichlorosalicylic acid compounds, processes for preparing 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 3,6-dichlorosalicylic acid compounds, and processes that employ such compounds as intermediates in the preparation of the herbicide dicamba.
    Type: Application
    Filed: November 22, 2017
    Publication date: June 7, 2018
    Applicant: Monsanto Technology LLC
    Inventors: Terri L. Boehm, Mangesh Bore, Jeffery N. Carroll, G. Davis Harris, JR., Matthew D. McReynolds, Justin R. Struble, Daniel P. Walker
  • Patent number: 9856201
    Abstract: The present disclosure relates, in general, to 5-halo-3,6-dichlorosalicylic acid compounds, 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 5-halo-3,6-dichlorosalicylic acid compounds, processes for preparing 5-halo-3,6-dichlorosalicyaldehyde compounds, processes for preparing 3,6-dichlorosalicylic acid compounds, and processes that employ such compounds as intermediates in the preparation of the herbicide dicamba.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: January 2, 2018
    Assignee: Monsanto Technology LLC
    Inventors: Terri L. Boehm, Mangesh Bore, Jeffery N. Carroll, G. Davis Harris, Jr., Matthew D. McReynolds, Justin R. Struble, Daniel P. Walker
  • Publication number: 20170190648
    Abstract: The present disclosure relates, in general, to 5-halo-3,6-dichlorosalicylic acid compounds, 5-halo-3,6-dichlorosalicy-aldehyde compounds, processes for preparing 5-halo-3,6-dichlorosalicylic acid compounds, processes for preparing 5-halo-3,6-di-chlorosalicyaldehyde compounds, processes for preparing 3,6-dichlorosalicylic acid compounds, and processes that employ such compounds as intermediates in the preparation of the herbicide dicamba.
    Type: Application
    Filed: June 3, 2015
    Publication date: July 6, 2017
    Applicant: Monsanto Technology LLC
    Inventors: Terri L. Boehm, Mangesh Bore, Jeffery N. Carroll, G. Davis Harris, JR., Matthew D. McReynolds, Justin R. Struble, Daniel P. Walker
  • Publication number: 20110028452
    Abstract: The present invention is directed to novel pyrido[4,3-d]pyrimidin-4(3H)-one derivatives and pharmaceutically acceptable salts thereof of structural formula I wherein the variables R1, R2, R3, R4 and R5 are as described herein. Also provided are pharmaceutical compositions comprising the compounds of formula I as well as methods of treatment employing compounds of formula I to treat a disease or disorder characterized by abnormal bone or mineral homeostasis such as hypoparathyroidism, osteoporosis, osteopenia, periodontal disease, Paget's disease, bone fracture, osteoarthritis, rheumatoid arthritis, and humoral hypercalcemia of malignancy.
    Type: Application
    Filed: September 30, 2010
    Publication date: February 3, 2011
    Inventors: Mary T. Didiuk, Kevin K. Liu, David A. Griffith, Angel Guzman-Perez, Feng C. Bi, Daniel P. Walker
  • Patent number: 7829572
    Abstract: The present invention is directed to novel pyrido[4,3-d]pyrimidin-4(3H)-one derivatives and pharmaceutically acceptable salts thereof of structural formula I wherein the variables R1, R2, R3, R4 and R5 are as described herein. Also provided are pharmaceutical compositions comprising the compounds of formula I as well as methods of treatment employing compounds of formula I to treat a disease or disorder characterized by abnormal bone or mineral homeostasis such as hypoparathyroidism, osteoporosis, osteopenia, periodontal disease, Paget's disease, bone fracture, osteoarthritis, rheumatoid arthritis, and humoral hypercalcemia of malignancy.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: November 9, 2010
    Assignee: Pfizer Inc
    Inventors: Mary T. Didiuk, Kevin K. Liu, David A. Griffith, Angel Guzman-Perez, Feng C. Bi, Daniel P. Walker
  • Patent number: 5965595
    Abstract: The subject invention relates to compounds having the structure: ##STR1## wherein (a) n is an integer from 1 to about 3;(b) X and Y are each independently selected from O, S and CH.sub.2, with at least one of X and Y being O or S;(c) R is unsubstituted, straight or branched chain alkanyl or alkanoxy having from 1 to about 3 non-hydrogen atoms; and(d) R' is selected from hydrogen, methyl, cyano, and halo;pharmaceutical compositions containing such compounds; and the use of such compounds for preventing or treating of disorders modulated by alpha-2 adrenoceptors.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: October 12, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Peter J. Maurer, Jeffrey J. Ares, William L. Seibel, Daniel P. Walker, Russell James Sheldon, Raymond T. Henry
  • Patent number: 5914342
    Abstract: The subject invention relates to compounds having the structure: ##STR1## wherein (a) n is an integer from 1 to about 3;(b) X and Y are each independently selected from O, S and CH.sub.2, with at least one of X and Y being O or S;(c) R is unsubstituted, straight or branched chain alkanyl or alkanoxy having from 1 to about 3 non-hydrogen atoms; and(d) R' is selected from hydrogen, methyl, cyano, and halo; pharmaceutical compositions containing such compounds; and the use of such compounds for preventing or treating of disorders modulated by alpha-2 adrenoceptors.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: June 22, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Peter J. Maurer, Jeffrey J. Ares, William L. Seibel, Daniel P. Walker, Russell James Sheldon, Raymond T. Henry
  • Patent number: 5663189
    Abstract: The subject invention relates to compounds having the structure: ##STR1## wherein (a) n is an integer from 1 to about 3;(b) X and Y are each independently selected from O, S and CH.sub.2, with at least one of X and Y being O or S;(c) R is unsubstituted, straight or branched chain alkanyl or alkanoxy having from 1 to about 3 non-hydrogen atoms; and(d) R' is selected from hydrogen, methyl, cyano, and halo; pharmaceutical compositions containing such compounds; and the use of such compounds for preventing or treating one or more of respiratory disorders, ocular disorders, and gastrointestinal disorders.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 2, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Peter Julian Maurer, Jeffrey Joseph Ares, William Lee Seibel, Daniel P. Walker