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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
TOKAMAK ENERGY LTD	173 BROOK DRIVE MILTON ABINGDON OXFORDSHIRE OX14 4SD UNITED KINGDOM

International Classification(s)

• G21F:PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, C....
• G21B:FUSION REACTORS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Astbury, Jack	Abingdon Oxfordshire, GB	2	0
Davidson, James	London Greater London, GB	52	1760
Humphry-Baker, Samuel A	London Greater London, GB	2	0
McFadzean, Charles	London Greater London, GB	1	0
Windsor, Colin	Abingdon Oxfordshire, GB	1	0

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Aug 1, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Aug 1, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 1, 2035

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2024/0038,408

MATERIALS FOR TUNGSTEN BORIDE NEUTRON SHIELDING

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