Real interesting quotes..could apply to any big company looking to play catch up (such as Google) in the tech patent arena..

"When you start you have to play catch-up," she told the BBC.

"When you've finished playing catch-up and you've got yourself in a stronger position, you then can begin to look forward."

Other patents included a method for using web-based applications across additional devices, and an intriguingly titled computer phone.

Neither Google nor IBM would comment on the deal when approached by the BBC.

'Get real'

Last year, Google accused its competitors of buying up what it called "bogus patents" in order to slow the development of its Android operating system.

However, the company now appears to have succumbed to the same approach as it adds the IBM patents to a portfolio that also includes technology for driverless cars.

"Although you can object to a lot of cost of inconvenience by virtue of people enforcing their patents, the patent system still exists," Piers Strickland, a lawyer specialising in mobile telephone patent litigation, told the BBC

"In order to engage with that you've either got to take licences from from people's patents, and/or aggressively increase your bartering position by buying patents.

"I think they've realised that they just had to get real, and understand that you can't just ignore the system."