services for energy storage projects in multiple countries, and Siemens is a supplier to us of goods and services that we use when delivering and maintaining energy storage projects for customers. Occasionally, in the ordinary course of business Siemens and Fluence act as a consortium to deliver energy storage projects for customers.
We have entered into a patent assignment agreement with Siemens pursuant to which Siemens has assigned, sold and transferred to us the entire right, title and interest in the United States and all foreign countries, in and to any and all inventions and improvements disclosed in certain identified patent applications, pending patent applications and granted letter patents.
On September 9, 2021, we entered into an intellectual property assignment agreement with AES (the “Patent Transfer Agreement”), whereby AES assigned certain intellectual property to Fluence that we had previously utilized pursuant to a license from AES. In connection with the Patent Transfer Agreement, we entered into a License Agreement with AES (the “License-Back Agreement”), whereby we granted AES perpetual, non-exclusive, worldwide rights to do any acts within the current and future fields of business of AES, which are not activities which are exclusive to us and which would otherwise infringe any of the intellectual property just transferred to us, under fair, reasonable and non-discriminatory royalty terms, to be negotiated by the parties thereto. The Patent Transfer Agreement contains customary limitation of liability provisions.
Prior to the completion of the IPO and the other Transactions, AES and Siemens provided support services to us in the ordinary course of business, pursuant to various support agreements, such as engineering support, software development, HR, and payroll services, and seconding a limited number of employees to service for Fluence. Prior to the completion of the IPO and the other Transactions, AES and Siemens Industry provided revolving credit support for our business pursuant to an Amended and Restated Credit Support and Reimbursement Agreement.
Prior to August 1, 2021, Manuel Perez Dubuc, our chief executive officer, was seconded from AES, which paid Mr. Dubuc’s salary. We reimbursed AES for that expense. After August 2, 2021, Mr. Dubuc became our employee.
On April 28, 2021 and June 3, 2021, we borrowed $25.0 million and $25.0 million from AES and Siemens Industry, respectively, in the form of one-year promissory notes, each bearing annual interest at 2.86%. On May 3, 2021, we borrowed $25.0 million from Siemens Industry, in the form of a one-year promissory note with an annual interest rate of 2.86%. The proceeds were used for general working capital needs. As of June 22, 2021, the total $75.0 million in borrowings from AES and Siemens Industry were paid off in full.
Prior to the completion of the IPO and the other Transactions, Fluence Energy, LLC entered into customary indemnification agreements with the individual members of the Fluence Energy, LLC Board of Directors, as it was constituted at that time.
On August 11, 2021, Fluence Energy, LLC entered into a promissory note with each of Siemens Industry and AES Grid Stability, under which Fluence Energy, LLC received a bridge financing of an aggregate of $50.0 million. In connection with the bridge financing, Fluence Energy, LLC issued a $25.0 million promissory note to each of Siemens Industry and AES Grid Stability (together, the “Promissory Notes”). The Promissory Notes bear interest at a rate of 2.86%. The Promissory Notes were repaid on November 1, 2021 using proceeds from the IPO.
For additional information regarding amounts involved in foregoing transactions for fiscal year 2021, please see Note 14- Related-Party Transactions to the consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2021.
Related Party Agreements after the IPO and the Transactions
In connection with our IPO, we amended certain of our existing affiliate agreements and enter into a number of new agreements with those shareholders and their affiliates in order to provide a framework for our relationship with those shareholders, including a Tax Receivable Agreement, the