Prior art

The most relevant prior art for US patent 11675791 can be found by examining the citations listed within the patent itself. The USPTO provides a database for searching patents and their associated prior art. Prior art is crucial for evaluating the validity of patent claims.

To identify the most relevant prior art for US11675791, I will need to access the patent document itself and look at the "Referenced By" or "Citations" section. Since I cannot directly browse the USPTO database live, I will use the information available in the provided patent text.

The patent US11675791B2 states it is a continuation of U.S. application Ser. No. 16/053,141 filed on Aug. 2, 2018, which itself is a continuation of U.S. Pat. No. 10,061,812 filed on Mar. 14, 2014, and claims priority benefit of U.S. Application Ser. No. 61/791,218 filed Mar. 15, 2013. These are direct lineage documents and are highly relevant as they contain the core inventive concept.

Here's the breakdown of the directly referenced prior art from the patent's "Description" section:

1. U.S. Pat. No. 10,061,812

• Full Citation: U.S. Pat. No. 10,061,812
• Publication/Filing Date: Filed on Mar. 14, 2014 (This is the filing date mentioned in US11675791B2, the publication date would be when it was granted).
• Brief Description: This patent is a direct parent application of US11675791B2. Therefore, it is highly likely to describe a "System and method for tracking progression toward a customized goal," or a very similar invention, given that US11675791B2 is a continuation of it.
• Potential Anticipated Claim(s) under 35 U.S.C. § 102: Given that US11675791B2 is a continuation of this patent, it is highly probable that US10061812 anticipates all independent claims (Claim 1, Claim 15, and Claim 20) of US11675791B2 under 35 U.S.C. § 102, as the later patent is building upon the disclosures of the earlier one. A continuation application typically covers the same invention as a prior non-provisional application.

2. U.S. Application Ser. No. 16/053,141

• Full Citation: U.S. application Ser. No. 16/053,141
• Publication/Filing Date: Filed on Aug. 2, 2018.
• Brief Description: This is an intermediate parent application of US11675791B2, being a continuation of US10061812 and itself continued by US11675791B2. It would also describe a "System and method for tracking progression toward a customized goal" or a closely related invention.
• Potential Anticipated Claim(s) under 35 U.S.C. § 102: Similarly to US10061812, it is highly probable that US Application Ser. No. 16/053,141 anticipates all independent claims (Claim 1, Claim 15, and Claim 20) of US11675791B2 under 35 U.S.C. § 102.

3. U.S. Application Ser. No. 61/791,218

• Full Citation: U.S. Application Ser. No. 61/791,218
• Publication/Filing Date: Filed on Mar. 15, 2013.
• Brief Description: This is the earliest priority application, a provisional application. Provisional applications serve to establish an early effective filing date and typically contain a description of the invention. It would describe the foundational concepts of the "System and method for tracking progression toward a customized goal."
• Potential Anticipated Claim(s) under 35 U.S.C. § 102: As the priority document, this application would likely disclose the core elements of the invention. Therefore, it could potentially anticipate aspects of all independent claims (Claim 1, Claim 15, and Claim 20) of US11675791B2, particularly regarding the fundamental system, method, and controller elements for tracking goal progression as broadly described in the independent claims.

It's important to note that without access to the full text of these cited documents, this analysis is based on their stated relationship to US11675791B2 within the patent document itself. A full prior art analysis would require a detailed comparison of the claims of US11675791B2 against the complete disclosures of these prior art documents.