Patent · US Expired

Sleep-promoting factor

US4342748A · kind A · utility

3Cited by

0References

7Claims

0Family size

Assignee

President and Fellows of Harvard College · US

Inventors

John R. Pappenheimer · Cambridge, US
James M. Krueger · Germantown, US
Manfred L. Karnovsky · Cambridge, US

Key dates

Filing date	Jan 29, 1981
Grant date	Aug 3, 1982
Priority date	—
Expiry date	Jan 29, 2001

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K35/30
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Sleep-promoting factor isolated from brains of sleep-deprived animals or from human urine and concentrated using ion-exchange resins.

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