I am going to talk about my general overview on the 9 patents in terms of their anticipation and obviousness. I would first like to define what anticipation and obviousness is when talking about patent. Anticipation is the novelty of the patent, whether any work demonstrates the claim that patent is saying. Obviousness determines the content of the prior art, and see the differences between the claimed invention and the prior art.
Obviousness and anticipation both relate to prior art, in which I consider each patent to be an improvement or development on a prior patent that they are not patent anticipation. Even though there is little difference, it still has an obvious difference between the prior art and the patent invention. Therefore, in terms of the obviousness and anticipation, these patents seem like they are defendable. Further explaining the "improvement" of original invetion, these patents are developing and changing in more efficient ways through time, starting from the 1950s to now, 2015. Although, the shape, function, and texture of the sleeves have changed quite surprisingly, the general principle and goal of insulating a coffee cup has remained the same, which validates my opinion that they are "developing" and "improving."
Therefore, each patent is valid when we talk in terms of obviousness and anticipation. Yet, the differences that each patent is making is so small and subtle that it would not bring as much innovation as we are expecting or desiring.
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