Haptic technology company Immersion has filed complaints against Apple, AT&T, and AT&T Mobility with the U.S. International Trade Commission and in U.S. Federal District Court. Immersion has also filed a patent infringement complaint against Apple, AT&T and AT&T Mobility in the U.S. District Court for the District of Delaware.

Immersion alleges that Apple iPhone 6, Apple iPhone 6 Plus, Apple iPhone 6s, Apple iPhone 6s Plus, Apple Watch, Apple Watch Sport and Apple Watch Edition infringe certain Immersion patents covering haptic feedback systems and methods in electronic devices.

In the ITC complaint, Immersion is seeking an exclusion order preventing the importation, sale for importation, and sale after importation of infringing Apple devices into the United States by the defendants and appropriate cease and desist orders. In the U.S. District Court suit, Immersion is alleging infringement of the same patents and is seeking to stop further infringement by the defendants, and to recover damages.

The complaints assert infringement of the following two Immersion patents:

• U.S. Patent No. 8,619,051: "Haptic Feedback System with Stored Effects"
• U.S. Patent No. 8,773,356: "Method and Apparatus for Providing Tactile Sensations"

The complaints also assert infringement by the iPhone 6s and iPhone 6s Plus of the following Immersion patent:

• U.S. Patent No. 8,659,571: "Interactivity Model for Shared Feedback on Mobile Devices"

Apple declined to comment on the charges by Immersion.