What about eyes? Are those not GPU's also? Could they sue the frontal cortex of my brain?
If you want to relate eyes to a product, then a better comparison would be any type of hand-held, video recording device. GoPro Hero line, Sony 4k Action Cam and other video recording devices/camera are good examples. I would think that your brain would function as both your CPU and GPU. People have delusions, imaginations, images from memory, and day-dreams that they visualize in their heads. In a sense, you can view this as image processing by an "organic GPU." If you're one of the types who believe that people have different forms of perception (a way in which data is inputted into your brain through 1 of 5 senses), there are visual learners who have to use their organic GPU to learn and manipulate information. Example of these feats would be simplifying mathematical equations in their head by imagining it, or communicating with other and one of the conversing parties would visually imagine each word being said in their mind. These are known as left and/or right hemisphere visual learners.
Can people patented their eyes, and the answer to this question is a big no. To patent something is to imply that you created a product in a special way, and you want ownership over the intellectual rights to that creation. If other parties decide to use your intellectual rights, they have to pay royalties if they make a profit over it. In a state of equality, it is believed that everyone is equal. So body functions act equal to one another. This is the assumption. The only difference between person A and person B is the "self," their soul, background, conditioning, etc...
Since this line of thought already goes severely off topic, I am going to elaborate even further, and say that out of all humans under the 12 signs (if you follow zodicology), the only people that could actually have a natural patent on their eyes, are Scorpios. Scorpios are the Children of the Serpents. A mis-conception of a "Serpent" is anything related to the snake family, but the truth is, a Serpent is any living creature that's possess Serpent's Eyes, or eyes of the killer. These creatures or animals would have special "ocular" abilities that augment them to see things, or hunt things better over other animals. Snakes have them, eagles have them (eagle's eye), certain families of cats have them, scorpions have them, etc... If we talk about mythical creatures, dragons would have them, the phoenix would have them, Medusa (a gorgon) would have them. One could also make a claim that "gawd" has them too...
An example of this train of thought, used in the media, on steroids, would be the Naurto and Naurto Shippuden Franchise. One point to consider. The owner of the franchise is a Scorpio. Second point would be that Naurto Shippuden Series goes in depth about 3 ocular "Dojutsu" known as the Rinnegan, Byakugan, and Sharingan. These are different, fictional versions of Serpent's Eyes. Last point I want to make is that the main Character in the series, Naruto, is a Libra who acts like a Scorpio. Two major characters in the video, Orochimaru and Hashirama Senju, with Naruto Uzumaki, represent 3 aspects of Scorpio (Scorpion, Snake, and the Eagle).
The only way, realistically, that you can start to patent body parts, is only if AMD, Apple, Intel, Microsoft, NVidia, Samsung, or some other Techy-Company starts going into prosthetics to an extent that humans become partially or completely cyber-nized. This eventually leads to the action of creating patents for artificial body-parts. In addition to that, the creation of a demand-supply mechanic for these prosthetics that will eventually be heavily regulated by the government--a reality close to Ghost in the Machine or the Matrix.
