Patent · US Expired

Processes for preparation of microspheres

US4166800A · kind A · utility

310Cited by
3References
45Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 31, 1978
Grant dateSep 4, 1979
Priority date—
Expiry dateJul 31, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2989
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Microspheres, prepared by the low-temperature e.g., -40.degree. to -100.degree. C., phase separation of a polymer and a core material.

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