Extensions

U.S. Patent No. 8,685,998, titled "Tacrolimus for improved treatment of transplant patients," was filed on July 7, 2009, and issued on April 1, 2014.

Patent Term Adjustments (PTA)

According to information from Google Patents and a USPTO search result, the term of U.S. Patent No. 8,685,998 has been adjusted by 0 days. Patent Term Adjustment (PTA) compensates patentees for certain administrative delays by the USPTO during patent prosecution, aiming to ensure a patent term of 20 years from the earliest filing date.

Patent Term Extensions (PTE)

There is no information within the provided patent text or search results specifically indicating that US 8,685,998 has received a Patent Term Extension (PTE). PTEs are granted under the Hatch-Waxman Act for pharmaceutical products to compensate for delays during the FDA regulatory review process, and can extend a patent's term by up to five years, with a total patent term not exceeding 14 years following FDA approval.

Continuation and Divisional Applications

U.S. Patent No. 8,685,998 is explicitly identified as a continuation of U.S. patent application Ser. No. 12/499,034, filed July 7, 2009. Additionally, the patent claims the benefit of U.S. Provisional Application No. 61/079,015, filed July 8, 2008, and is a continuation-in-part of PCT Application No. PCT/DK2008/050130, filed May 30, 2008.

Other related applications, which may be continuations, continuations-in-part, or divisional applications, include:

• US20100105717A1 (published April 29, 2010)
• US13/029,304 (priority claimed February 17, 2011)
• US13/167,381 (priority claimed June 23, 2011, legal status: Abandoned)
• US13/167,420 (priority claimed June 23, 2011, which became US Pat. No. 8,664,239)
• US14/140,791 (priority claimed December 26, 2013, legal status: Abandoned)
• US15/041,986 (priority claimed February 11, 2016)
• US15/405,879 (priority claimed January 13, 2017)
• US16/188,805 (priority claimed November 13, 2018)
• US17/085,291 (priority claimed October 30, 2020)
• US17/085,379 (priority claimed October 30, 2020)
• US17/444,402 (priority claimed August 4, 2021)
• US17/857,442 (priority claimed July 5, 2022)
• US18/799,080 (priority claimed August 9, 2024)

Related Family Members

The patent explicitly mentions being a continuation-in-part of PCT Application No. PCT/DK2008/050130, filed May 30, 2008, which in turn claims priority to Danish Patent Application Nos. PA 2007 00783 (filed May 30, 2007) and PA 2007 01573 (filed November 7, 2007).

Projected Expiration Date

The Google Patents legal status section indicates that U.S. Patent No. 8,685,998 has an "Adjusted expiration" date of 2029-01-20. Given the filing date of the earliest non-provisional application (US12/499,034) on July 7, 2009, a standard 20-year patent term would typically end on July 7, 2029. However, since no Patent Term Adjustment (PTA) was applied (0 days), the slightly earlier expiration date suggests that the term might be calculated from an earlier priority date not explicitly highlighted as the basis for the 20-year term. The earliest priority date claimed is May 30, 2007, from Danish Patent Application No. PA 2007 00783. Twenty years from this date would be May 30, 2027. However, the Google Patents information clearly indicates an adjusted expiration of January 20, 2029. The specific reason for this adjustment to January 20, 2029, without any PTA days, is not explicitly detailed within the provided text, but it is the stated adjusted expiration date.