Security framework for transmitting communication messages between a substation LAN and packet-switched WAN

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9979696
SERIAL NO

15172939

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The invention relates to the field of a security framework for transmitting communication messages between a Substation LAN and packet-switched WAN, in particular, a network interface for transmitting protection data in a power network. The present invention provides a network interface for transmitting communication data including protection data of a power communication network, between a Substation Ethernet LAN and a packet-switched WAN usually in Layer 2. The network interface comprises: a firewall and a Layer 3 router being connected with each other and adapted to transmit the communication data excluding the protection data; and a Layer 2 bypass being in parallel with the firewall and the Layer 3 router, and adapted to transmit the protection data. According to a further aspect, the present invention also provides a method for transmitting such communication data.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HITACHI ENERGY LTDBROWN-BOVERI-STRASSE 5 ZÜRICH 8050

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cachin, Dominique Winterthur, CH 6 31
Gygax, Alex Biberstein, CH 2 7
Maag, Hans-Joerg Zürich, CH 3 25

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 22, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 22, 2029
Fee Large entity fee small entity fee micro entity fee
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