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eHarmony Granted Matching Compatibility Patent

( - May 17, 2004), an online dating relationship service, today announced that it has been granted U.S. Patent No. 6,735,568 for its unique Compatibility Matching System, a method that uses data from the study of thousands of married couples to predict long-term compatibility between two people.

"This patent is the culmination of decades of research into the factors that make relationships succeed or fail," said Greg Forgatch, founding CEO of "No other online dating or relationship site approaches the matching process at this level with such a strong emphasis on research and development."

eHarmony's patented matching approach applies data from extensive clinical research to predict which people are most likely to be compatible for long-term relationship satisfaction.

"We haven't set out to define relationship chemistry; obviously no system in the world has yet to accomplish that," explained Neil Clark Warren, Ph.D., founder and chairman of "What is truly compelling about our methodology is its ability to put singles together with several carefully evaluated matches with whom they are highly compatible."

Proving the Compatibility of Science and Love
eHarmony's unique method of studying married couples and applying the statistical models developed from that research to singles looking for a compatible partner has been validated in follow-up studies in 2002 and 2003.

"We are thrilled with the granting of this patent, but even more rewarding to us is that research proves that couples who meet and marry on eHarmony are significantly happier and more satisfied in their relationships," noted Steven Carter, Ph.D., eHarmony's director of research.

Extensive scientific research comparing couples who met and married via to married couples who met by other means reveals that eHarmony's patented matching technology may be the first to pin love down to a science. A recent study of 1,347 married couples found that those introduced through the eHarmony service were nearly twice as likely to report their marriages as "extremely happy" or better. Over 90% of couples had above-average marriage quality scores, when compared to couples who had begun their relationships elsewhere. The results were based on the Dyadic Adjustment Scale (DAS), generally considered to be one of the most accurate and reliable measures of marital satisfaction available.


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