Patent · US Active

Diatomaceous earth composition with a low endotoxin content

US12420258B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Sartorius Stedim Biotech GmbH · DE

Inventors

Karl Pflanz · Oettingen, DE
Florian Hebenstreit · Beberstedt, DE
Andreas Pickl · Klein Schneen, DE

Key dates

Filing date	Jan 23, 2024
Grant date	Sep 23, 2025
Priority date	—
Expiry date	Jan 23, 2044

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L2202/21
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a diatomaceous earth composition with a low endotoxin content, comprising an agglomerated mixture of calcined diatomaceous earth particles and water, wherein the mass ratio of calcined diatomaceous earth particles and water is in the range of 1:1.0 to 1:2.0, and wherein the endotoxin content of the diatomaceous earth composition is equal to or less than 0.5 EU/mL. In a further aspect, the present invention relates to a method for producing the diatomaceous earth composition with a low endotoxin content. In another aspect, the present invention relates to the use of the diatomaceous earth composition with a low endotoxin content as a precoat agent for the precoat filtration in biopharmaceutical applications.

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