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

Patent Owner(s)

Patent Owner	Address
VOEST-ALPINE BERGTECHNIK GESELLSCHAFT M B H	8740 ZELTWEG

International Classification(s)

• E21D:SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAM....

• 1991 Application Filing Year
• E21D Class
• 71 Applications Filed
• 22 Patents Issued To-Date
• 30.99 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Lerchbaum, Karl	Fohnsdorf, AT	7	28
# of filed Patents : 7 Total Citations : 28
Suessenbeck, Heinrich	Zeltweg, AT	4	15
# of filed Patents : 4 Total Citations : 15
Zitz, Alfred	Zeltweg, AT	51	419
# of filed Patents : 51 Total Citations : 419

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Patent Citation Ranking

• 6 Citation Count
• E21D Class

• 4.76 % this patent is cited more than
• 32 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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 No: 9988776

Wind screens for photovoltaic arrays and methods thereof

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Abstract

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Wind screen for one or more photovoltaic arrays and method thereof. For example, a wind screen for one or more photovoltaic arrays includes a screen foundation including a concrete block, and one or more perforation blocks on the concrete block. In another example, the wind screen is configured to cover at least a first side of each array of the one or more photovoltaic arrays.

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Description

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Claims

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Legal Events

 

• LAPS2022
• STCH2022
• FP2022
• FEPP2022
• AS2019
• I2018
• STCF2018
• AS2017
• P2017
• F2016

Date	Code	Event	Description
Jul 11, 2022	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 11, 2022	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jun 05, 2022	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jun 05, 2022
Jan 24, 2022	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
May 06, 2019	AS	ASSIGNMENT	free format text: SECURITY INTEREST;ASSIGNOR:ALION ENERGY, INC.;REEL/FRAME:051052/0484 Owner name: BATIOS HOLDINGS LIMITED, VIRGIN ISLANDS, BRITISH Effective Date: May 06, 2019
Jun 05, 2018	I	Issuance
May 16, 2018	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jun 29, 2017	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOLLAND, RODNEY HANS;BAILEY, SEAN;SIGNING DATES FROM 20170411 TO 20170425;REEL/FRAME:043061/0106 Owner name: ALION ENERGY, INC., CALIFORNIA
Mar 16, 2017	P	Published
Sep 09, 2016	F	Filing