More NewsUS Grants Firewall Patent to Tumbleweed

US Grants Firewall Patent to Tumbleweed

Tumbleweed Communications has been granted U.S. Patent No. 6,609,196 by the U.S. Patent and Trademark Office, titled ‘E-mail Firewall with Stored Key Encryption/Decryption.’ The move represents the first patent for e-mail firewalls. Jeffrey Smith, Chairman and CEO at Tumbleweed, explains: ‘The e-mail firewall has become a critical component of the network. Tumbleweed pioneered the market for e-mail firewalls, and now the U.S. Patent and Trademark Office has affirmed our position in this growing market.’

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