This Amazon patent lists Jeff Bezos as an inventor and is directed towards sharing information about purchases. Mr. Bezos was awarded U.S. Patent 7478054 entitled “Sharing information about purchases” on January 13, 2009. The utility patent has been cited 57 times by other U.S. patents in the field of it methods for management and in other fields.

A facility for notifying a first user about a purchase made by a second user is described. The facility detects that the second user has purchased an item. The facility further determines that the first user has a purchase notification relationship with the second user. The facility then provides to the first user a notification that the second user has purchased the item. Link: U.S. Patent 7478054

Amazon filed this utility patent on November 20, 2000 giving it a processing time of 2976 days (compared to an average processing time of 2461 in the field). They have a total number of 158 patents. The first named inventor is Jeffrey P. Bezos of Seattle, WA. The patent was allowed by assistant examiner Christopher Buchanan and primary examiner F. Zeender.

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