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On Tuesday Kodak has filed lawsuits against Apple and HTC claiming infringement of patent violations regarding the sharing of digital pictures between various electronic devices. The claim accuses Apple of violating four digital photography patents Kodak said it obtained after "concluding it would be desirable for people to easily share pictures" from digital cameras without having to first upload them to a central PC. Apple and HTC are likely to cooperate with each other over the Kodak suit, although the companies are suing each other.

Essentially, any Apple product with a camera is affected by the proposed suit, but specifically cited examples include the iPad 2, iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S, and the iPod touch (4th generation).It is unclear whether software like Apple's Photo Stream, which allows digital images taken on one iDevice to be pushed to other devices through the company's iCloud, or other third-party apps that allow for image transfer over Bluetooth or WiFi are being targeted in the suit.

The four patents in question:

• U.S. Patent No. 7,210,161 on "automatically transmitting images from an electronic camera to a service provider using a network configuration file"
• U.S. Patent No. 7,742,084 on a "network configuration file for automatically transmitting images from an electronic still camera"
• U.S. Patent No. 7,453,605 on "capturing digital images to be transferred to an e-mail address"
• U.S. Patent No. 7,936,391 on a "digital camera with communications interface for selectively transmitting images over a cellular phone network and a wireless LAN network to a destination"