BlackBerry, referred to by its old name, Research in Motion, in the filings, was sued over the '681 patent because it infringes the patent with its BlackBerry Enterprise Solution, Maz said.
Apple is the only company that was sued over a different patent. The company allegedly infringes on a patent covering file system encryptions, the '358 patent, it uses in its iOS security system and architecture, used in products as the iPhone, iPad and iPod Touch, Maz said.
Maz requested a jury trial in all cases, is seeking damages and wants a permanent injunction against the infringing products.
Apple, HP and Dell declined to comment on pending litigation. Lenovo, BlackBerry, Fujitsu and Toshiba did not respond to a request for comment.
Loek is Amsterdam Correspondent and covers online privacy, intellectual property, open-source and online payment issues for the IDG News Service. Follow him on Twitter at @loekessers or email tips and comments to firstname.lastname@example.org