When a patent application is examined it is checked to see if the invention that is being claimed is new and involves an inventive step when compared to the prior art base. The prior art base is basically information that was in the public domain,...

When you first file a patent application for a particular invention, the date that the application is lodged with the Patent Office becomes the application’s priority date. In some circumstances it’s possible to file a subsequent patent application, for the same invention, so that the...

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