Patents by Inventor Theodor G. Dekker

Theodor G. Dekker 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).

  • Derivatives of pentacyclo undecanes, processes for preparing these compounds, and pharmaceutical compositions thereof
    Patent number: 4622430
    Abstract: Pentacyclo[6.3.0.0..sup.2,6.0.sup.3,10.0.sup.5,9 ]undecane and its derivatives are prepared. The compounds find use as antiviral agents.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: November 11, 1986
    Assignee: Noristan Limited
    Inventors: Theodor G. Dekker, Douglas W. Oliver, Friedrich O. Snyckers, Cornelis J. van der Schyf
  • Phlorophenone derivatives, processes for preparing such compounds, uses and pharmaceutical compositions of phlorophenone compounds
    Patent number: 4578520
    Abstract: Novel compounds of general formula I ##STR1## wherein R is a branched or unbranched alkyl, cycloalkyl, or aralkyl group, which group optionally contains or is substituted by a halogen or oxygen function, the oxygen function optionally being in the form of an alcohol or ether moiety;R.sub.1, R.sub.2, and R.sub.3, which may be the same or different, is hydrogen, an alkyl, acyl, or benzoyl group, which group optionally contains or is substituted by a halogen or oxygen function;R.sub.4 is hydrogen, an alkyl, alkenyl preferably being an allyl or prenyl group, or aralkyl group which group optionally contains or is substituted by an alkyl, aryl, halogen or oxygen function;R.sub.5 is hydrogen, an alkyl, aralkyl, acyl, or aryl group, which group optionally contains or is substituted by an alkyl, aryl, halogen, or oxygen function; except that R.sub.4 and R.sub.5 are not both hydrogen;and except for the compounds when R.sub.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: March 25, 1986
    Assignee: Noristan Limited
    Inventors: Theunis G. Fourie, Theodor G. Dekker, Friedrich O. Snyckers, Cornelis J. van der Schyf
  • Phlorophenone derivatives, processes for preparing such compounds, uses and pharmaceutical compositions of phlorophenone compounds
    Patent number: 4503256
    Abstract: Novel compounds of general formula I ##STR1## wherein R is a branched or unbranched alkyl, cycloalkyl, or aralkyl group, which group optionally contains or is substituted by a halogen or oxygen function, the oxygen function optionally being in the form of an alcohol or ether moiety;R.sub.1, R.sub.2, and R.sub.3, which may be the same or different, is hydrogen, an alkyl, acyl, or benzoyl group, which group optionally contains or is substituted by a halogen or oxygen function;R.sub.4 is hydrogen, an alkyl, alkenyl preferably being an allyl or prenyl group, or aralkyl group which group optionally contains or is substituted by an alkyl, aryl, halogen or oxygen function;R.sub.5 is hydrogen, an alkyl, aralkyl, acyl, or aryl group, which group optionally contains or is substituted by an alkyl, aryl, halogen, or oxygen function;except that R.sub.4 and R.sub.5 are not both hydrogen;and except for the compounds when R.sub.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: March 5, 1985
    Assignee: Noristan Limited
    Inventors: Theunis G. Fourie, Theodor G. Dekker, Friedrich O. Snyckers, Cornelis J. van der Schyf