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Michael D. Roley
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Washington, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Valvetrain spacer
Patent number
12,281,602
Issue date
Apr 22, 2025
Caterpillar Inc.
Ram Prasanth Anjaneyulu
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine braking strategy using cylinder flow-through path for optimi...
Patent number
12,234,781
Issue date
Feb 25, 2025
Caterpillar Inc.
Matthew Wolk
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Spacer equipped to spray oil and rocker arm assembly for valvetrain
Patent number
12,215,611
Issue date
Feb 4, 2025
Caterpillar Inc.
Quinton Burcar
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine valve with raised ring or dimple
Patent number
11,885,246
Issue date
Jan 30, 2024
Caterpillar Inc.
Jeffrey Clark Krieger
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Single-valve electrohydraulic control system for engine braking roc...
Patent number
11,614,007
Issue date
Mar 28, 2023
Caterpillar Inc.
Quinton Burcar
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Hydro-mechanical module for engine valve actuation system
Patent number
11,333,048
Issue date
May 17, 2022
Caterpillar Inc.
Stephan Donald Roozenboom
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine head assembly with valve seat insert with stiffness relief c...
Patent number
11,215,089
Issue date
Jan 4, 2022
Caterpillar Inc.
Jeffrey Clark Krieger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Engine valve with raised ring or dimple
Patent number
11,215,092
Issue date
Jan 4, 2022
Caterpillar Inc.
Jeffrey Clark Krieger
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
System for lubricating valve assembly of engine
Patent number
9,879,575
Issue date
Jan 30, 2018
Caterpillar Inc.
Douglas D. Erdman
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Patents Applications
last 30 patents
Information
Patent Application
VALVETRAIN SPACER
Publication number
20240392707
Publication date
Nov 28, 2024
Caterpillar Inc.
Ram Prasanth ANJANEYULU
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
ENGINE VALVE WITH RAISED RING OR DIMPLE
Publication number
20220034243
Publication date
Feb 3, 2022
Caterpillar Inc.
Jeffrey Clark Krieger
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
ENGINE HEAD ASSEMBLY WITH VALVE SEAT INSERT WITH STIFFNESS RELIEF C...
Publication number
20210180478
Publication date
Jun 17, 2021
Caterpillar Inc.
Jeffrey Clark Krieger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
ENGINE VALVE WITH RAISED RING OR DIMPLE
Publication number
20210180480
Publication date
Jun 17, 2021
Caterpillar Inc.
Jeffrey Clark Krieger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
SYSTEM FOR LUBRICATING VALVE ASSEMBLY OF ENGINE
Publication number
20160281550
Publication date
Sep 29, 2016
Caterpillar Inc.
Douglas D. Erdman
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES