The new patent suggests that Apple is thinking well beyond the iPad when it comes to the future of the Apple Pencil.

Technology for an advanced Apple Pencil has been spotted in a patent document, and it describes the use of a trackball tip and optical sensors.

According to the filing, named Input Device with Optical Sensors, the Apple Pencil could in future work with optical sensors across a wide range of surfaces, potentially including the iPhone, MacBook ...

Candidates will assist with the successful procurement of patent protection for innovative technologies, evaluate the designs of new products, and assist with the evaluation of competitor products.