Oil level maintenance system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8820479
APP PUB NO 20130001017A1
SERIAL NO

13531816

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Abstract

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Oil level maintenance system for a gearbox (3) in a wind turbine comprising an intermediate tank (7) for determining the inlets (8.1, 8.2) and outlets (9.1, 9.2) of connection between the multiplication stages (6) of the gearbox (3) in the wind turbine and the external tank (5) for oil destined for the gearbox (3).

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Patent Owner(s)

Patent OwnerAddress
SIEMENS GAMESA RENEWABLE ENERGY INNOVATION & TECHNOLOGY S LAVENIDA DE LA LNNOVACION 9-11 SARRIGUREN (NAVARRA) 31621

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saenz, De Ugarte Sevilla Patrick Zamudio, ES 2 14
Zabala, Zabala Jose Maria Asteasu, ES 4 14

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 2, 2026
Fee Large entity fee small entity fee micro entity fee
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