Using the private blockchain, the present invention will permit simultaneous cooperation between multiple, worldwide Patent Offices when reviewing patent applications by having a single repository for 1. prior art submitted by the applicant; 2. prior art identified by the various examiners at the NPOs; and 3. third parties. All prior art for a given patent in examination is stored in one repository (such as provided by the present invention) and it is (at first) controlled by cooperating national patent Offices. The repository can be controlled by other parties that are not national patent Offices. Using the private blockchain, the present invention will permit a patent Owner or Applicant to select worldwide patent law firms to draft and prosecute a patent application in worldwide countries. The patent Owner or Applicant can select which countries he wants to file patent applications in. The patent Owner or Applicant can list specific requirements regarding the background/education/work experience for which patent attorneys should file his patent applications.