Ric Boyd

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Balgownie, AU

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Patents Grantslast 30 patents

Information Patent Grant
Mining machine with multiple cutter heads
- Patent number 10,876,399
- Issue date Dec 29, 2020
- Joy Global Underground Mining LLC
- Peter A. Lugg
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining machine with multiple cutter heads
- Patent number 10,415,384
- Issue date Sep 17, 2019
- Joy Global Underground Mining LLC
- Peter A. Lugg
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
MINING MACHINE WITH MULTIPLE CUTTER HEADS
- Publication number 20200011173
- Publication date Jan 9, 2020
- Joy Global Underground Mining LLC
- Peter A. Lugg
- E21 - EARTH DRILLING MINING
Information Patent Application
MINING MACHINE WITH MULTIPLE CUTTER HEADS
- Publication number 20170211383
- Publication date Jul 27, 2017
- Joy MM Delaware, Inc.
- Peter A. Lugg
- E21 - EARTH DRILLING MINING