The number of US technology patent applications is on the increase, a rise which some experts see as a sign that the economy is recovering from the dotcom doldrums.
According to industry newsletter The Trademark Insider, applications jumped 7.4 per cent in the first quarter of the year.
David Slayton, chief financial officer at NameProtect, a digital brand management company that publishes the newsletter, said that it was the first significant increase since the first quarter of 2000, "which is really when the economy tanked".
He explained that trademark filings surged during the internet boom when there were large numbers of new business launches which needed names for their companies and products.
Increases have continued monthly, from 18,614 in March to 19,025 in April and 19,470 in May, the latest figure available.
However, there are fears that recent accounting scandals in the US may dampen the economic optimism.
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