The Patent Finder

Grain Processing Corporation

Also on record
Records under this name other than the patents Grain Processing Corporation holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 14 patents it holds.

Back to Grain Processing Corporation

PatentTitleStatus Expires Confidence
US 7,757,638Animal litter, process for preparing animal litter, and method of removal of animal waste
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,734,768Animal litter, process for preparing animal litter, and method for removal of animal waste
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,232,767Animal litter, process for preparing animal litter and method of removal of animal waste
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,950,360Odor-Absorbing Materials and Processes for Their Preparation and Use
Formerly held
In force
 · High confidence
In forceHigh confidence
US 9,288,964Animal litter, process for preparing animal litter and method of removal of animal waste
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,232,765Animal litter, process for preparing animal litter and method of removal of animal waste
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,828,708Method of Feeding an Animal Using Dissociated Cells
Lapsed on the fee record
Ended Sep 9, 2026 · High confidence
Lapsed on the fee recordEnded Sep 9, 2026High confidence
US 8,832,963Method for Drying Spent Filter Media
Term ended
Term ended May 16, 2026 · High confidence
Term endedTerm ended May 16, 2026High confidence
US 9,873,640Method for Drying Spent Filter Media
Lapsed on the fee record
Ended Jan 23, 2026 · High confidence
Lapsed on the fee recordEnded Jan 23, 2026High confidence
US 8,342,104Rail car and method for transport of bulk materials
Term ended
Term ended Jan 13, 2026 · From the USPTO record
Term endedTerm ended Jan 13, 2026From the USPTO record
10 of 139 patents shown.
Pro members see all 139.
Pro members: see all 139 patents
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited