Patents by Inventor Mahammad N. Ahmad

Mahammad N. Ahmad 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).

  • Method of preparing N,N,N-trimethylsphingosine
    Patent number: 5248824
    Abstract: The invention relates to a novel compound, compositions and medicaments thereof and a method of inhibiting cell proliferation, platelet aggregation (induced by various factors), and inhibiting malignant phenotypes of tumor cells such as those having a metastatic property, using said compound, composition or medicament. N,N,N-trimethylsphingosine shows superior cell proliferation inhibitory and anti-metastatic activity over related compounds.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: September 28, 1993
    Assignee: The Biomembrane Institute
    Inventors: Yasuyuki Igarashi, Mahammad N. Ahmad, Hirofumi Okoshi, Sen-Itiroh Hakomori
  • Effect of N,N,N-trimethylsphingosine on protein kinase-C activity, melanoma cell growth in vitro, metastatic potential in vivo and human platelet aggregation
    Patent number: 5151360
    Abstract: The invention relates to a novel compound, compositions and medicaments thereof and a method of inhibiting cell proliferation, platelet aggregation (induced by various factors) and inhibiting malignant phenotypes of tumor cells such as those having a metastatic property, and modulating cell adhesion molecule expression and function using said compound, composition or medicament. N,N,N-trimethylsphingosine shows superior cell proliferation inhibitory an anti-metastatic activity over related compounds.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: September 29, 1992
    Assignee: Biomembrane Institute
    Inventors: Kazuko Handa, Yasuyuki Igarashi, Mahammad N. Ahmad, Sen-Itiroh Hakomori
  • Effect of N,N,N,-trimethylsphingosine on protein kinase C activity melanoma cell growth in vitro; metastatic potential in vivo and human platelet aggregation
    Patent number: 5137919
    Abstract: The invention relates to a novel compound, compositions and medicaments thereof and a method of inhibiting cell proliferation, platelet aggregation (induced by various factors), and inhibiting malignant phenotypes of tumor cells such as those having a metastatic property, using said compound, composition or medicament. N,N,N-trimethylsphingosine shows superior cell proliferation inhibitory and anti-metastatic activity over related compounds.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: August 11, 1992
    Assignee: Biomembrane Institute
    Inventors: Yasuyuki Igarashi, Mahammad N. Ahmad, Hirofumi Okoshi, Sen-Itiroh Hakomori