Patent · US Active

Process of removing transition metals

US7449591B2 · kind B2 · utility

27Cited by

5References

19Claims

0Family size

Assignee

Boehringer Ingelheim International GmbH · DE

Inventors

Michael Brenner · Dallas, US
Kai Donsbach · Hargesheim, DE
Thomas Nicola · Ingelheim am Rhein, DE
Thomas Wirth · Freinsheim, DE

Key dates

Filing date	Jan 27, 2005
Grant date	Nov 11, 2008
Priority date	—
Expiry date	May 30, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07K5/0821
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A process of diminishing the concentration of a transition metal complex from a first solution by adding a solubility-enhancing compound that enhances the solubility of said complex in a second solution and extracting the first solution with the second solution. The solubility-enhancing compound is a compound of formula Awherein,

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