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:
Feb. 10, 2015
Filed:
Feb. 20, 2013
Kent Pet Group, Inc., Muscatine, IA (US);
Lin Wang, Iowa City, IA (US);
Thomas A. Wiesner, Muscatine, IA (US);
David Freeman, Iowa City, IA (US);
Kent Pet Group, Inc., Muscatine, IA (US);
Abstract
A slightly puffed, low density, moisture-absorbing and odor-absorbing additive that can readily remove undesirable odors from a confined space is produced from re-purposed spent carbon materials obtained from other processes. The product is particularly suitable as an addition to animal litters and the like with possible uses in human applications. An aspect of the method includes a step of extruding a spent carbon mixture, optionally containing diatomaceous earth to obtain the additive. Also disclosed are de-germinated corn flour, or grits, that aid process flow and can serve as a substrate for the spent carbon materials.