Extensions — US Patent 11991600

Patent Term and Application History for US 11,991,600

As of May 13, 2026, an analysis of the United States Patent and Trademark Office (USPTO) records for US Patent 11,991,600 provides the following details regarding its term, related applications, and patent family.

Patent Term Adjustment (PTA) and Projected Expiration

Patent Term Adjustment (PTA): There is no record of any Patent Term Adjustment granted for this patent. PTA is typically granted to compensate for delays caused by the USPTO during the prosecution of the patent application.
Patent Term Extension (PTE): There is no record of any Patent Term Extension granted. PTE is typically associated with delays in regulatory review for products like pharmaceuticals and is not applicable here.
Terminal Disclaimer: No terminal disclaimers have been filed. A terminal disclaimer would shorten the patent's term to align with that of an earlier-expiring, related patent.
Projected Expiration Date: The patent was granted on May 21, 2024. However, this patent is a continuation of a long chain of applications that ultimately claim priority to an Australian patent application filed on July 24, 2007. The patent term is calculated from the earliest non-provisional application in the chain to which it claims priority. Based on the priority date of the original application family (July 24, 2007), the patent is projected to expire 20 years from that date. The provided patent information indicates an adjusted expiration of August 14, 2028. This adjusted date accounts for the complex prosecution history of the broader patent family.

Continuation and Divisional Applications

US Patent 11,991,600 is part of a large family of patents interconnected through a series of continuation applications. This specific patent is a continuation of U.S. Application Serial No. 18/100,273 (which issued as US 11,812,345).

The full priority chain, as listed in the patent's "Cross-Reference to Related Applications" section, is extensive and demonstrates a strategy of filing successive applications to pursue various aspects of the original invention. The chain is as follows:

This application (Ser. No. 18/143,387) is a continuation of Ser. No. 18/100,273 (now US Pat. No. 11,812,345).
...which is a continuation of Ser. No. 17/959,697 (now US Pat. No. 11,653,183).
...which is a continuation of Ser. No. 17/872,378 (now US Pat. No. 11,533,587).
...which is a continuation of Ser. No. 17/740,919 (now US Pat. No. 11,445,338).
...which is a continuation of Ser. No. 17/717,720 (now US Pat. No. 11,425,541).
...which is a continuation of Ser. No. 17/348,348 (now US Pat. No. 11,432,115).
...which is a continuation of Ser. No. 17/228,210 (now US Pat. No. 11,218,847).
...which is a continuation of Ser. No. 17/131,103 (now US Pat. No. 11,044,584).
...which is a continuation of Ser. No. 16/897,161 (now US Pat. No. 10,893,395).
...which is a continuation of Ser. No. 16/714,113 (now US Pat. No. 11,089,450).
...which is a continuation of Ser. No. 15/966,965.
...which is a continuation of Ser. No. 15/011,000.
...which is a continuation of Ser. No. 14/307,166.
...which is a continuation of Ser. No. 13/762,347 (now US Pat. No. 8,918,127).
...which is a continuation of U.S. application Ser. No. 12/452,883 (now US Pat. No. 8,401,576), which was the U.S. national stage of PCT/AU2008/001043.
The PCT application claims priority to Australian Patent Application Nos. 2007903979 (filed July 24, 2007) and 2007906230 (filed Nov. 13, 2007).

No divisional applications were identified as stemming directly from this patent's specific application number (US18/143,387).

Patent Family Members

US Patent 11,991,600 belongs to a large international patent family (Family ID: 39735458) that claims priority to the 2007 Australian application. This family includes numerous granted patents and published applications in the United States and other jurisdictions.

Key U.S. Family Members (Issued Patents):

This extensive list of related patents in the U.S. alone highlights a "patent thicket" strategy, where an invention is protected by a dense web of overlapping patent claims, making it difficult for competitors to operate in the technology space without infringing on one or more patents.