Extensions

Analysis of Patent Term, Adjustments, and Family for US Patent 8,641,525

As of May 9, 2026, the following details pertain to the term, application history, and related patents of US Patent 8,641,525.

Patent Term and Expiration

• Filing Date: The application for US Patent 8,641,525 (Application No. 13/162,727) was filed on June 17, 2011.
• Patent Term: Standard utility patents filed after June 8, 1995, have a term of 20 years from the earliest non-provisional filing date.
• Patent Term Adjustment (PTA): There is no record of any Patent Term Adjustment (PTA) granted for this patent. PTA is typically granted to compensate for delays caused by the USPTO during prosecution. The absence of PTA indicates the patent was issued within the statutory timeframes.
• Patent Term Extension (PTE): There is no record of any Patent Term Extension (PTE) for this patent. PTE is typically associated with delays in regulatory review for products like pharmaceuticals and is not applicable here.
• Projected Expiration Date: Based on the filing date of June 17, 2011, and the absence of any term adjustments, the projected expiration date for US Patent 8,641,525 is June 17, 2031. This is contingent upon the timely payment of all required maintenance fees.

Application History and Related Family Members

US Patent 8,641,525 is part of a large family of patents and applications that claim priority to the same initial filing. This indicates a strategy to build a broad portfolio of intellectual property around the core invention of rear-mounted controller paddles.

• Original Application: The patent issued from US Patent Application No. 13/162,727.

• Continuation Applications: The inventors have filed numerous continuation applications, which allow for the pursuit of claims that are different in scope or directed to different embodiments of the invention disclosed in the original parent application. Notable continuations include:

  • US Patent 9,089,770: Filed December 27, 2013 (Application No. 14/141,840).
  • US Patent 10,286,305: Filed June 30, 2015 (Application No. 14/754,789).
  • US Patent 9,878,238: Filed June 30, 2015 (Application No. 14/754,793).
  • US Patent 11,278,797: Filed March 22, 2019 (Application No. 16/362,137).
  • US Patent 11,806,613: Filed February 9, 2022 (Application No. 17/667,713).
  • US Patent 12,318,686: Filed October 9, 2023 (Application No. 18/483,025).

• Divisional Applications: No divisional applications have been identified for this patent. A divisional application would involve carving out a distinct invention from the original disclosure into a separate application.

• Patent Family: This patent is part of an extensive international patent family, with related patents and applications filed in numerous jurisdictions. The assignee, Ironburg Inventions Ltd., is associated with a large portfolio of patents covering various aspects of controller design, including back controls, trigger mechanisms, and thumbsticks. This broad family includes other key US patents such as 9,289,688, 9,352,229, and many others, which have also been asserted in litigation. This large and actively prosecuted patent family demonstrates the significant commercial value the assignee places on this technology.