Patent · US Expired

Reservoir for controlled active substance delivery, and apparatus containing the same

US6207181A · kind A · utility

2Cited by
1References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 31, 1995
Grant dateMar 27, 2001
Priority date
Expiry dateAug 31, 2015

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2013/0296
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The invention relates to reservoirs with a delivery surface for the controlled delivery of active substances decreasing over the time of use to solid, liquid or gaseous acceptors and whereby at least at one point of the reservoir a cross-sectional surface of the reservoir is parallel to the delivery surface and smaller in area than the delivery surface. The invention also relates to an apparatus for the controlled delivery of active substances decreasing over the time of use, which has at least one reservoir. At least one active substance to be delivered is active in the technical, human and veterinary medical, cosmetic and pest control sectors.

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