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Aaron L. Barfels
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Davenport, IA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Agricultural implements and hydraulic circuits therefor incorporati...
Patent number
11,713,775
Issue date
Aug 1, 2023
Deere & Company
Randall A. Maro
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Electronic latching circuit
Patent number
10,321,621
Issue date
Jun 18, 2019
Deere & Company
Aaron L. Barfels
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Implement with reduced hydraulic oil exchange
Patent number
9,200,644
Issue date
Dec 1, 2015
Deere & Company
Aaron L. Barfels
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Implement frame with main section helper lift cylinders
Patent number
8,893,816
Issue date
Nov 25, 2014
Deere & Company
Randall A. Maro
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Folding implement frame with weight transfer
Patent number
8,776,908
Issue date
Jul 15, 2014
Deere & Company
Randall A. Maro
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Active implement down force system with automatic latching of tract...
Patent number
8,573,111
Issue date
Nov 5, 2013
Deere & Company
William Douglas Graham
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Implement with active wing down force and wing lift sequencing
Patent number
7,918,285
Issue date
Apr 5, 2011
Deere & Company
William Douglas Graham
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Patents Applications
last 30 patents
Information
Patent Application
AGRICULTURAL IMPLEMENTS AND HYDRAULIC CIRCUITS THEREFOR INCORPORATI...
Publication number
20220056931
Publication date
Feb 24, 2022
Deere & Company
Randall A. MARO
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
Electronic Latching Circuit
Publication number
20180042167
Publication date
Feb 15, 2018
Deere & Company
AARON L. BARFELS
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
IMPLEMENT WITH REDUCED HYDRAULIC OIL EXCHANGE
Publication number
20140060035
Publication date
Mar 6, 2014
AARON L. BARFELS
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
FOLDING IMPLEMENT FRAME WITH WEIGHT TRANSFER
Publication number
20140060860
Publication date
Mar 6, 2014
RANDALL A. MARO
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
IMPLEMENT FRAME WITH MAIN SECTION HELPER LIFT CYLINDERS
Publication number
20140060865
Publication date
Mar 6, 2014
RANDALL A. MARO
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
Active Implement Down Force System With Automatic Latching Of Tract...
Publication number
20110253239
Publication date
Oct 20, 2011
William Douglas Graham
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING