Patent · US Expired

Partially purified bone-inducing factor

US4627982A · kind A · utility

106Cited by
9References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 26, 1985
Grant dateDec 9, 1986
Priority date
Expiry dateFeb 26, 2005

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K38/00
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A partially purified proteinaceous bone-inducing factor of 10,000 to 30,000 daltons is described. It is derived from demineralized bovine bone by extraction with a chaotropic agent, gel filtration, cation exchange chromatography using carboxymethyl cellulose at pH 4.8 and gradient elution with NaCl at 10 mM to about 150 mM.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.