Patent · US Expired

Substituted benzopyrano[3,4-c]pyridine-5-ones

US4018766A · kind A · utility

3Cited by
1References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 25, 1975
Grant dateApr 19, 1977
Priority date—
Expiry dateJun 25, 1995

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K31/54
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Disclosed are novel substituted benzopyranopyridines which are active as bronchodilators.

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