Patents Assigned to Wofor AG
  • Lipoglycosides and process of extracting same
    Patent number: 4590264
    Abstract: This invention provides novel lipoglycosides having the structural formula: ##STR1## wherein R.sub.1 and R.sub.2 are different and are selected from the group consisting of hydrogen and ##STR2## The lipoglycosides have antitumor properties.
    Type: Grant
    Filed: August 11, 1983
    Date of Patent: May 20, 1986
    Assignee: Wofor AG
    Inventors: Sidney M. Hecht, David G. Lynn, Kalakota S. Reddy
  • Biologically active extracts from Cerastium viscusum L. (Coryophyllaceae) Mississippi and method of obtaining same
    Patent number: 4454124
    Abstract: This invention provides an extract from the plant Cerastium viscusum L. (Coryophyllaceae) Mississippi and a method of obtaining same. The extract is obtained by subjecting the plant to a series of extraction steps with a plurality of solvents having different polarities. In each extraction step, the solvent used has a polarity higher than that used in the preceding extraction step. All extraction steps are conducted at room temperature. The extracts have been found to possess biological activity.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: June 12, 1984
    Assignee: WOFOR AG
    Inventor: Sidney M. Hecht
  • Biologically active extracts from Myrcia fallax (Myrtaceae) Peru and method of obtaining same
    Patent number: 4451459
    Abstract: This invention provides an extract from the plant Myrcia fallax (Myrtaceae) Peru and a method of obtaining same. The extract is obtained by subjecting the plant to a series of extraction steps with a plurality of solvents having different polarities. In each extraction step, the solvent used has a polarity higher than that used in the preceding extraction step. All extraction steps are conducted at room temperature. The extracts have been found to possess biological activity.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: May 29, 1984
    Assignee: Wofor AG
    Inventor: Sidney M. Hecht
  • Biologically active extracts from Myristica castaneifolia (Myristicaceae) Fiji and a method of obtaining same
    Patent number: 4352797
    Abstract: This invention provides an extract from the plant Myristica castaneifolia (Myristacaceae) Fiji and a method of obtaining same. The extract is obtained by subjecting the plant to a series of extraction steps with a plurality of solvents having different polarities. In each extraction step, the solvent used has a polarity higher than that used in the preceding extraction step. All extraction steps are conducted at room temperature. The extracts have been found to possess biological activity.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: October 5, 1982
    Assignee: Wofor AG
    Inventor: Sidney M. Hecht