"research claimed" is correct and can be used in written English.
You can use it to introduce a claim that you're citing from a piece of research. For example: "Research claimed that listening to music can help people feel happier and more relaxed."
All fund managers are not equal, the research claimed.
Credit and debit card spending could hit a new record this Christmas with consumers expected to put over £20bn on their plastic during December, research claimed today.
Mr. Wang, Mr. Kumar and Russell Artzt, the executive vice president for research, claimed more than $1.1 billion in bonuses in 1998, based on the company's market value.
Its launch came a day after separate research claimed that one in 10 people have been the victim of a cyber-attack on their credit or debit card in the last year.
"Twenty years ago, research claimed that we could cut down the eight hours' sleep to five hours, as three of those hours are spent in 'light' sleep," says Mark Blagrove, reader in psychology at Swansea University.
One bit of research claimed Utah had the highest per capita of paid pornography subscriptions in the country.
Another researcher had sold my company his research, claiming the wreck had taken place on El Dorado Shoal near Bimini, in the Bahamas.
Flimsy medical research claims that cheerfulness can improve the immune system.
Recent research claims that charioteers were the highest-paid sportsmen in history.
Last year, Manchester University's Dr David Drucker published research claiming the existence of 'a cot death gene'.
In fact, the research claims that 30% of Tinder users surveyed are married, while another 12% are in a relationship.
