The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1998
Filed:
Mar. 18, 1997
Applicant:
Inventors:
Kirsten Furhmann, Hanover, DE;
Alf-Eric Wischnat, Lehrte, DE;
Thomas Schulz, Bad Pyrmont, DE;
Michael Hoffmeister, Hanover, DE;
Assignee:
Engelhard Process Chemicals GmbH, Nienburg/Weser, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
95117 ; 95126 ; 55275 ;
Abstract
Particulate adsorbents composed of inorganic oxides impregnated with an indicator dye selected from the group consisting of phenolphthalein, cresol red and thymol blue; a method for the production thereof, and a method for adsorptive drying of neutral gases using the aforementioned particulate adsorbents, whereby the degree of water absorption by the adsorbent particles is indicated by a reversible color change.
Furhmann, Kirsten. (1998). Adsorbents composed of inorganic oxides modified with organic dyes (U.S. Patent No. 5766312). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5766312
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile