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[Asrg] C/R patents

2003-05-11 13:30:21
I finally found the actual patents, they are discussed in this story:

http://www.siliconvalley.com/mld/siliconvalley/business/columnists/mike_langberg/5565050.htm

According to the story both patents are currently owned by MailBlocks, Inc. The patent numbers are US# 6,199,102, filed August 26, 1997 and issued March 6, 2001; and US # 6,112,227, filed on August 6, 1998 and issued August 29, 2000. Both patents can be looked up at the website of the US Patents and Trademarks Office (http://patft.uspto.gov/netahtml/srchnum.htm).

Abstract of patent #  6,199,102:

A method is provided for preventing the delivery of unwanted electronic mail messages to a destination client. An original electronic mail message is first received from a source client at a destination server. Next, a reply electronic mail message is sent from the destination server to the source client requesting the source client to complete a registration process to register the source client's electronic mail address with the destination server. The original electronic mail message is only sent from the destination server to the destination client when the source client properly registers the source client's electronic mail address.

Abstract of patent # 6,112,227:

A method is provided for preventing the delivery of unwanted electronic mail messages to a destination client. An original electronic mail message is first received from a source client at a destination server. Next, a reply electronic mail message is sent from the destination server to the source client requesting the source client to complete a registration process to register the source client's electronic mail address with the destination server. The original electronic mail message is only sent from the destination server to the destination client when the source client properly registers the source client's electronic mail address.

The second one seems to cover all C/R systems and that's what MailBlocks claims in the news article.

Yakov


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Yakov Shafranovich / <research(_at_)solidmatrix(_dot_)com>
SolidMatrix Research, a division of SolidMatrix Technologies, Inc.
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"One who watches the wind will never sow, and one who keeps his eyes on
the clouds will never reap" (Ecclesiastes 11:4)
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