Inventor

SCHAEFER JR DONALD B

US4 patents

⚠️ This page may combine multiple inventors who share the name “SCHAEFER JR DONALD B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHAEFER JR DONALD B

2 patents

US9347904B1May 24, 2016

Grain-bin monitoring system

SCHAEFER JR DONALD B26 citations89

US8806772B1Aug 19, 2014

Grain drying system

SCHAEFER JR DONALD B30 citations87

HARMON INDUSTRIES

1 patent

US5533695AJul 9, 1996

Incremental train control system

HARMON INDUSTRIES215 citations95

AGI Suretrack LLC

1 patent

US11243182B2Feb 8, 2022

Moisture soil probe system

AGI Suretrack LLC0 citations51