One of our readers Fernando Ardenghi let us know that the US PTO granted eHarmony a second patent last November 18, 2008. There are two eHarmony patents now; their patent lawyers have not been without work.
Patent No. US 6,735,568 B1: Method and System for Identifying People Who are Likely to Have a Successful Relationship
The functions and operations of a matching service are disclosed. This includes approximating the satisfaction that a user of the matching service has in the relationships that the user forms with others and identifying candidates for a relationship with the user based on the approximated satisfaction. This also includes approximating the satisfaction that the user will have in a relationship with a particular candidate. The matching service also identifies two parties for a relationship. The matching service makes available a plurality of communication levels at which the parties can communicate. Each communication level allows the parties to exchange information in a different format. The parties are permitted to exchange information at one of the communication levels.
Patent number: 6735568
Filing date: August 10, 2000
Issue date: May 11, 2004
Application number: 9/636,010
Patent No. US 7,454,357 B2: Method and System for Identifying People Who are Likely to Have a Successful Relationship
The functions and operations of a matching service are disclosed. This includes approximating the satisfaction that a user of the matching service has in the relationships that the user forms with others and identifying candidates for a relationship with the user based on the approximated satisfaction. This also includes approximating the satisfaction that the user will have in a relationship with a particular candidate. The matching service also identifies two parties for a relationship. The matching service makes available a plurality of communication levels at which the parties can communicate. Each communication level allows the parties to exchange information in a different format. The parties are permitted to exchange information at one of the communication levels.
Patent number: 7454357
Filing date: February 13, 2004
Issue date: November 18, 2008
Application number: 10/779,106
You’re welcome to spend a few hours reading what eHarmony says it has invented.
Note: No, there is no typo. The two patents have the same title and abstract.

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