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Wilhelmus Hendrickus Theunissen
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Gauteng, ZA
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for specifying and controlling sump depth
Patent number
11,306,585
Issue date
Apr 19, 2022
Joy Global Underground Mining Inc
Wilhelmus Henrickus Theunissen
E21 - EARTH DRILLING MINING
Information
Patent Grant
System and method for measuring and aligning roof bolts
Patent number
11,174,731
Issue date
Nov 16, 2021
Joy Global Underground Mining LLC
Wilhelmus Hendrickus Theunissen
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD FOR SPECIFYING AND CONTROLLING SUMP DEPTH
Publication number
20200248550
Publication date
Aug 6, 2020
Joy Global Underground Mining LLC
Wilhelmus Henrickus Theunissen
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEMS AND METHODS FOR EVALUATING UNDERGROUND ROAD CONDITIONS USIN...
Publication number
20190154440
Publication date
May 23, 2019
Joy MM Delaware, Inc.
Wilhelmus Hendrickus Theunissen
B60 - VEHICLES IN GENERAL
Information
Patent Application
SYSTEM AND METHOD FOR MEASURING AND ALIGNING ROOF BOLTS
Publication number
20180298756
Publication date
Oct 18, 2018
Joy MM Delaware, Inc.
Wilhelmus Hendrickus Theunissen
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS