Patent · US Expired

Dental material in powder form, process for its preparation and use

US5250585A · kind A · utility

6Cited by

6References

8Claims

0Family size

Assignee

ESPE Stiftung & Co. Produktions-und Vertriebs KG · DE

Inventors

Rainer Guggenberger · Hanerau-Hademarschen, DE
Klaus Ellrich · Herrsching am Ammersee, DE
Oswald Gasser · Hanerau-Hademarschen, DE
John W. McLean · London, GB
Owen Makinson · Culcairn, AU

Key dates

Filing date	Mar 21, 1990
Grant date	Oct 5, 1993
Priority date	—
Expiry date	Mar 21, 2010

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K6/889
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A dental material in powder form and being based on PA1 (a) aluminum fluorosilicate glass, PA1 (b) base metals suitable for dental use, or alloys of these with each other, and optionally PA1 (c) dry polycarboxylic acid and/or PA1 (d) a chelating agent, which contains at least some of constituent (a) as a sintered mixture with constituent (b).

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