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A Timestamp server that holds data ... we will need to be more innovative before mass even take it serious or want to adopt. The patent thing, not sure how these will hold up, not a lawyer but I assume everyone will ask for forgiveness rather than permission. Plus, there are tons of reasons patent can be voided.

1. Prior Art
   While there are several ways to invalidate a patent, the most frequent method is to attempt to locate prior art for the claimed invention. Simply put, prior art is all public information that was available prior to the priority date of the patent and teaches the claimed invention of the patent.

Locating prior art is the most common strategy to invalidate an existing patent by suggesting the patent is obvious or anticipated.

2. Proof of Sale or Public Use
   Another common method of patent invalidation is to provide evidence that the patented invention was somehow sold or used in the United States within one year before the patent application was filed. This tactic is used to suggest the invention was known, previously patented, or used prior and, subsequently, not an original invention.

Under the provisions of patent law, therefore, a patent can be properly invalidated by offering proof of sale or public use.

3. Improper Formation
   Perhaps the simplest and most overlooked way of invalidating a patent is to determine whether a patent even exists in the first place. In contemplating whether a United States patent is invalid, it is vital that you understand the concepts underlying patent validity. Invalidity, unlike infringement, signifies there was never a patent to be granted to begin with. While there are several ways to invalidate a published patent, the easiest check of validity is in the actual formation itself. In other words, the first question should be whether the product or invention was ever submitted to be patented in the first place. One might be surprised how many inventions are not. In other words, do not assume because a product or invention is in use it is properly patented.

4. Inventor’s Oath
   In patent law, an inventor is someone who has had input, regardless of how significant, into the invention listed in a claim. In the application process, this inventor must take an oath or make a declaration stating they believe the named inventor or inventors are, in fact, the original and first inventor or inventors of the invention in question.

A common invalidating mistake, therefore, is for the inventor, who often is collaborating with an investor and/or family member, to list the investor on the patent application in an attempt to honor or provide security to the investor. Frequently, this benign attempt at recognition is seen by the patent office as misrepresenting inventorship under oath.This alone could be grounds for the patent to invalidated.

5. Break in Priority Chain
   Some of the biggest benefits allotted by patent law derive through the filing of a continuing patent application. In so doing, the patent owner can secure patent protection for things un-examined or unclaimed in previous applications or simply seek broader protection for those already granted. To do this advantageously, however, one must adhere to strict rules and guidelines regarding the linking or joining of claims filed and processed earlier. If one does not follow these specific guidelines fastidiously and without error, the patent can inadvertently become invalidated.