Patents by Inventor Charles De Witt Adams

Charles De Witt Adams 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).

  • Compositions of alkyl 4-[o-(substituted amino)phenyl]-3-thioallophanates and methods of use
    Patent number: 4010278
    Abstract: Various alkyl 4-[o-(substituted amino)phenyl]-3-thioallophanates are useful as fungicides and mite ovicides. An exemplary specie is methyl 4-(o-butyramidophenyl)-3-thioallophanate.
    Type: Grant
    Filed: April 20, 1972
    Date of Patent: March 1, 1977
    Assignee: E. I. Du Pont de Nemours and Co.
    Inventor: Charles De Witt Adams
  • Trans-octahydropyridoindolobenzazepines
    Patent number: 3983123
    Abstract: Certain 3-substituted octahydropyridoindolobenzazepines and their addition salts with pharmaceutically acceptable acids produce a marked central nervous system depressant activity in warm-blooded animals. These compounds are stereoisomers of prior art 3-substituted octahydropyridoindolobenzazepines which have a central nervous system antidepressant activity.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: September 28, 1976
    Assignee: Endo Laboratories, Inc.
    Inventor: Charles De Witt Adams
  • Alkyl 4-[o-substituted aminophenyl]-3-thioallophanates
    Patent number: 3943163
    Abstract: Various alkyl 4-[o-(substituted amino)phenyl]-3-thioallophanates are useful as fungicides and mite ovicides.
    Type: Grant
    Filed: April 20, 1972
    Date of Patent: March 9, 1976
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Charles De Witt Adams
  • Trans-octahydropyridoindolobenzazepines as central nervous system depressants
    Patent number: 3932650
    Abstract: Certain 3-substituted octahydropyridoindolobenzazepines and their addition salts with pharmaceutically acceptable acids produce a marked central nervous system depressant activity in warm-blooded animals. These compounds are stereoisomers of prior art 3-substituted octahydropyridoindolobenzazepines which have a central nervous system antidepressant activity.
    Type: Grant
    Filed: December 6, 1973
    Date of Patent: January 13, 1976
    Assignee: E. I. Du Pont de Nemours & Company
    Inventor: Charles De Witt Adams
  • Process for making oximes and use thereof to prepare cyclic urea fungicides
    Patent number: H1809
    Abstract: An advantageous process for preparing agriculturally suitable precursor compositions containing a compound of Formula IV is disclosed. The process involves (a) reacting a compound of Formula V with a nitrosating agent to provide a diazonium ion of Formula Va, (b) reacting the diazonium ion with a compound of Formula VI in the presence of a copper salt catalyst to obtain a reaction product containing the compound of Formula IV and greater than 100 ppm copper (based on the weight of Formula IV compound), and (c) separating copper from the Formula IV compound to obtain a purified product composition containing the compound of Formula IV and less than 10 ppm copper (based on the weight of Formula IV compound).
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: October 5, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Charles De Witt Adams, George Chihshu Chiang, Simon Lingqi Xu