The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 1985
Filed:
Feb. 17, 1984
Sigmund E Lasker, Roosevelt Island, New York, NY (US);
Other;
Abstract
The object of the invention is to provide a new antithrombotic agent. Coagulation of blood acts through a cascade of stages, the mechanisms and interaction of which have not been fully clarified. The present invention provides a derivative of heparin which can be administered orally, topically, or parenterally to antagonize the effect of factor Xa to a greater extent than commercial porcine heparin. In addition, the derivative has insignificant USP anticoagulant and platelet aggregating activities. The heparin derivative according to the invention, has a molecular weight of from about 2,500 to about 4,000 daltons, gives a positive metachromatic test for sulfated polysaccharides. Preferably, when isolated as the sodium salt, the derivative contains by elemental analysis about 26.2% carbon, 4.33% hydrogen, 1.98% nitrogen, 7.1% sulfur, and 9.8% sodium, the molar ratio C:N:S:Na being about 10:1.5:2:4.