TUNNELING AND MINING METHOD USING PRE-CONDITIONED HOLE PATTERN - Patent 4256165

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EP 4 256 165 A1

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(43)	Date of publication:
	11.10.2023 Bulletin 2023/41

(21)	Application number: 21841164.3

(22)	Date of filing: 01.12.2021

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International Patent Classification (IPC):

E21B 7/00^(2006.01)
E21D 9/10^(2006.01)

E21C 37/00^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	E21B 7/007; E21C 37/005

(86)	International application number:
	PCT/US2021/072669

(87)	International publication number:
	WO 2022/120347 (09.06.2022 Gazette 2022/23)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	KH MA MD TN

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Priority:

01.12.2020 US 202063120108 P
16.08.2021 US 202117445168
30.11.2021 US 202117457007

(71)	Applicant: Hypersciences, Inc.
	Spokane, WA 99202 (US)

(72)	Inventors:
	RUSSELL, Mark, C. Spokane, WA 99202 (US) RUSSELL, Charles, T. Spokane, WA 99202 (US)

(74)	Representative: EIP
	Fairfax House 15 Fulwood Place London WC1V 6HU London WC1V 6HU (GB)

(54)	TUNNELING AND MINING METHOD USING PRE-CONDITIONED HOLE PATTERN