Patents by Inventor Guy Joel Christian Marais

Guy Joel Christian Marais 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).

  • Phosphorus containing cyclic nucleotides
    Patent number: 6340754
    Abstract: The invention relates to a compound of formula (I) Wherein: B is adenine, guanine or hypoxanthine Z is hydrogen or a negative charge R is —[CH2CH(R1)—O]n—R2, —CH2CH2X, in which R1 is hydrogen or (C1-C6) alkyl R2 is hydrogen or (C1-C6) alkyl n is a number from 1 to 6 X is OH, F, NR3R4 R3 and R4 are independently from each other hydrogen or (C1-C6) alkyl and to methods of enzymatically treating these compounds with biocatalysts having cyclic phosphodiesterase activity.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: January 22, 2002
    Assignee: Novartis AG
    Inventors: Oreste Ghisalba, Guy Joel Christian Marais, Pierre Martin
  • Method for treating cyclic phosphate compound
    Patent number: 6147211
    Abstract: The invention relates to a compound of formula (I) ##STR1## Wherein: B is adenine, guanine or hypoxanthineZ is hydrogen or a negative chargeR is --[CH.sub.2 CH(R.sup.1)--O].sub.n -R.sup.2, --CH.sub.2 CH.sub.2 X, in whichR.sup.1 is hydrogen or (C.sub.1 -.sub.6) alkylR.sup.2 is hydrogen or (C.sub.1 -.sub.6) alkyln is a number from 1 to 6X is OH, F, NR.sup.3 R.sup.4R.sup.3 and R.sup.4 are independently from each other hydrogen or (C.sub.1 -.sub.6) alkyland to methods of enzymatically treating these compounds with biocatalysts having cyclic phosphodiesterase activity.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: November 14, 2000
    Assignee: Novartis AG
    Inventors: Oreste Ghisalba, Guy Joel Christian Marais, Pierre Martin