Patents by Inventor Charles A. Crichlow

Charles A. Crichlow 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).

  • 4-phenyl-1,3-benzodiazepines and 2-amino-.alpha.-phenylphenethylamines for treating convulsions and protecting neurons
    Patent number: 5260339
    Abstract: Novel 4-phenyl-1,3-benzodiazepines and 2-amino-.alpha.-phenylphenethylamines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants. The 2-amino-.alpha.-phenylphenethylamines are useful as anticonvulsant and neuroprotective agents.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: November 9, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Carboxamides of 2-amino-alpha-phenlphenethylamines
    Patent number: 5185465
    Abstract: Novel 4-phenyl-1,3-benzodiazepines and 2-amino-.alpha.-phenylphenethylamines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants. The 2-amino-.alpha.-phenylphenethylamines are useful as anticonvulsant and neuroprotective agents.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: February 9, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • 2-amino-alpha-phenylphenethylamines and method of use
    Patent number: 4968721
    Abstract: Novel 4-phenyl-1,3-benzodiazepines and 2-amino-.alpha.-phenylphenethylamines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants. The 2-amino-.alpha.-phenylphenethylamines are useful as anticonvulsant and neuroprotective agents.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: November 6, 1990
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Intermediates for the preparation of 4-phenyl-1,3-benzodiazepines
    Patent number: 4933493
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: June 12, 1990
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • 2-amino-N-methyl-.alpha.-phenyl-phenethylamines
    Patent number: 4822914
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: April 18, 1989
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • 4-Phenyl-1,3-benzodiazepines
    Patent number: 4504680
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: March 12, 1985
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • 2-(2-Nitrophenyl)-1-phenylethanone oxime acetates
    Patent number: 4469889
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: September 4, 1984
    Assignee: Hoechst-Roussel Pharmaceuticals, Incorporated
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Process for preparing 4-phenyl-1,3-benzodiazepines
    Patent number: 4462933
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: July 31, 1984
    Assignee: Hoechst-Roussel Pharmaceuticals, Incorporated
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Process for preparing 4-phenyl-1,3-benzodiazepines
    Patent number: 4459230
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: July 10, 1984
    Assignee: Hoechst-Roussel Pharmaceuticals, Incorporated
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Process for preparing 4-phenyl-1,3-benzodiazepines
    Patent number: 4459231
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: July 10, 1984
    Assignee: Hoechst-Roussel Pharmaceuticals, Incorporated
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Antidepressant (.alpha.-phenyl-2-tolyl)azacycloalkanols and derivatives thereof
    Patent number: 4414219
    Abstract: Novel azacycloalkanes, azacycloalkenes and derivatives thereof and methods of preparing same are described. These compounds are useful as antidepressants, anticonvulsants, tranquilizers and analgetics.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: November 8, 1983
    Assignee: American Hoechst Corporation
    Inventors: Lawrence L. Martin, Helen H. Ong, Vernon B. Anderson, Charles A. Crichlow
  • Process for preparing 4-phenyl-1,3-benzodiazepines
    Patent number: 4409145
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: October 11, 1983
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Antidepressant and tranquilizing (.alpha.-phenyl-2-tolyl)-azacycloalkenes
    Patent number: 4311703
    Abstract: Novel azacycloalkanes, azacycloalkenes and derivatives thereof and methods of preparing same are described. These compounds are useful as antidepressants, anticonvulsants, tranquilizers and analgetics.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: January 19, 1982
    Assignee: American Hoechst Corporation
    Inventors: Lawrence L. Martin, Helen H. Ong, Vernon B. Anderson, Charles A. Crichlow
  • 4-Phenyl-1,3-benzodiazepines
    Patent number: 4309424
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: January 5, 1982
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow
  • Antidepressant (.alpha.-phenyl-2-tolyl)azacycloalkanes
    Patent number: 4241071
    Abstract: Novel azacycloalkanes, azacycloalkenes and derivatives thereof and methods of preparing same are described. These compounds are useful as antidepressants, anticonvulsants, tranquilizers and analgetics.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: December 23, 1980
    Assignee: American Hoechst Corporation
    Inventors: Lawrence L. Martin, Helen H. Ong, Vernon B. Anderson, Charles A. Crichlow
  • Process for preparing 4-phenyl-1,3-benzodiazepines
    Patent number: RE32444
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: June 23, 1987
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crichlow