Extensions

For US Patent 8546449, here's a detailed breakdown of its patent term adjustments, extensions, continuation applications, divisional applications, related family members, and projected expiration date:

Patent Term Adjustments (PTA) and Extensions (PTE)

• Patent Term Adjustments (PTA): US Patent 8546449 has an "Adjusted expiration" date of 2031-09-02. PTA is granted to compensate for delays by the USPTO during the prosecution of a patent application. The total PTA adds to the 20-year lifespan of the issued patent.
• Patent Term Extensions (PTE): There is no indication of Patent Term Extension (PTE) for US8546449 in the provided information. PTE is typically awarded to compensate for delays in obtaining regulatory approval for certain patented products, such as pharmaceuticals.

Continuation and Divisional Applications

US Patent 8546449 (which issued from application US13/065,553 filed on March 24, 2011) is part of a patent family that includes continuation-in-part and divisional applications.

Continuation Applications:

• US10912321B2 (US Patent No. 10,912,321): This patent, titled "Methods of using peracetic acid to treat poultry in a chill tank during processing," is a continuation-in-part of and claims priority to the application (US13/065,553) that led to US8546449. It was filed on August 16, 2011, and issued on February 9, 2021.

Divisional Applications:

The litigation record for IPR2025-01472 explicitly mentions that the district court case against Clean Chemistry, Inc. alleges infringement of US8546449, as well as three divisional patents:

• US9737072 (U.S. Patent No. 9,737,072): This is identified as a divisional patent of US8546449. Its priority date is March 7, 2016.
• US9730443 (U.S. Patent No. 9,730,443): This is identified as a divisional patent of US8546449. Its priority date is March 7, 2016.
• US9363997 (U.S. Patent No. 9,363,997): This is identified as a divisional patent of US8546449. Its priority date is April 8, 2015.

Related Family Members

In addition to the continuation-in-part and divisional applications mentioned above, other related patent family members include:

• US20120245228A1: This is a publication of the application that led to US8546449, published on September 27, 2012.
• US9370180B2 (U.S. Patent No. 9,370,180): This patent, titled "Methods and compositions for the generation of peracetic acid on site at the point-of-use," was filed on September 5, 2013, and issued on June 21, 2016. It is broadly related and shares the same title.
• US10004230B2 (U.S. Patent No. 10,004,230): This patent is also listed as one of the patents issued subsequently to US8546449 within Enviro Tech's portfolio.
• US20170311595A1: This application, titled "Methods and Compositions for the Generation of Peracetic Acid On Site at the Point-of-Use," was filed on July 18, 2017, and published on November 2, 2017.

Projected Expiration Date

The "Adjusted expiration" date for US8546449 is 2031-09-02. This date includes any Patent Term Adjustment (PTA) granted to the patent. Utility patents generally have a term of 20 years from their earliest filing date, which can be extended by PTA for USPTO administrative delays. The original filing date for the application that led to US8546449 was March 24, 2011.