Prior art

To identify the most relevant prior art for US patent 10121186, I will examine the patent citations provided within the patent document itself. The patent lists "Prior art keywords" and "Priority claimed from" dates, which typically point to relevant prior art. Since the prompt specifically requests prior art for US10121186, I will focus on the references that US10121186 cites.

As a reminder, prior art anticipates a claimed invention if it describes the invention in sufficient detail to enable a person of ordinary skill in the art to carry it out. An invention is not patentable if it was described in an earlier printed publication or patent.

I will now extract the cited prior art from the patent document and analyze it.

Prior Art Cited in US10121186:

The patent US10121186 B2 lists the following "Priority claimed from" patents, which are generally considered prior art to the current patent:

1. US9430794B2

   • Full Citation: US9430794B2, titled "Unified input search field for making purchases", inventors Thomas M. Isaacson and Ryan Connell Durham.
   • Publication/Filing Date: The priority date for US10121186B2 is 2014-03-31, and US9430794B2 is listed as a priority claim from US14/230,864, which also shares the 2014-03-31 priority date. The publication date of US9430794B2 is September 6, 2016.
   • Brief Description: This patent describes a system and method for a unified input search field that allows a user to perform searches and make purchases from various websites with fewer interactions. It anticipates the idea of dynamically presenting options (like one-click purchase buttons or specific site searches) based on user input, and streamlining the process of transitioning to external sites in a pre-configured state to complete actions such as purchasing.
   • Potentially Anticipates Claim(s) under 35 U.S.C. § 102: This patent likely anticipates a significant number of claims related to the unified input field, intent determination (search vs. purchase), dynamic presentation of options, and streamlined transitions to merchant or search sites with pre-filled information. Specifically, claims related to receiving user input in a generalized search field, determining user intent (search or purchase), presenting purchase options (e.g., buy buttons), and facilitating one-click purchases or pre-filled forms on destination sites are potentially anticipated.

2. US9361638B2

   • Full Citation: US9361638B2, titled "System and method of using an application programming interface for making payments", inventors Thomas M. Isaacson and Ryan Connell Durham.
   • Publication/Filing Date: This patent claims priority from US14/672,876, with a priority date of 2015-03-30. The publication date of US9361638B2 is June 7, 2016.
   • Brief Description: This patent focuses on the use of an Application Programming Interface (API) to facilitate payments, particularly for enabling one-click or fewer-click purchasing experiences by communicating payment data between a browser or agent and a merchant site. It describes the use of an API to retrieve and transmit payment data, address data, and other user information to pre-fill forms and simplify the purchase process.
   • Potentially Anticipates Claim(s) under 35 U.S.C. § 102: This patent likely anticipates claims related to the browser payment request API, automatic population of payment fields, and simplifying the purchasing process by reducing user interaction for entering payment or address data. Claims addressing the method of receiving a request for payment data via an API, transmitting payment data via an API, and enabling a site to process a payment without manual entry are potentially anticipated.

3. US9824408B2

   • Full Citation: US9824408B2, titled "System and method of managing purchases across multiple sites", inventors Thomas M. Isaacson and Ryan Connell Durham.
   • Publication/Filing Date: This patent claims priority from US15/263,057, with a priority date of 2016-09-12. The publication date of US9824408B2 is November 21, 2017.
   • Brief Description: This patent introduces the concept of a purchase management engine that receives conversion data about purchases made through various "buy buttons" on different sites (e.g., Google, Facebook, Amazon) and correlates this data into a single user account. This account spans multiple purchasing platforms, allowing users to manage their purchases across disparate sites from a unified interface.
   • Potentially Anticipates Claim(s) under 35 U.S.C. § 102: This patent likely anticipates claims concerning the management of user purchase history across multiple, disparate merchant sites, the use of an API to gather purchase data from different platforms, and presenting a consolidated view of purchases to the user. Claims related to a "purchase management engine" and coordinating actions (like cancellations, reorders, tracking) across multiple platforms are potentially anticipated.

It is important to note that all three of these prior art documents share at least one inventor (Thomas M. Isaacson and Ryan Connell Durham) with US10121186B2. Under 35 U.S.C. § 102(b)(1)(A), a disclosure made within one year or less before the effective filing date of a claimed invention is not prior art if the disclosure was made by the inventor or a joint inventor, or by another who obtained the subject matter disclosed directly or indirectly from the inventor or a joint inventor. However, without further information on the specific filing dates of the claims within US10121186B2 relative to the publication/filing dates of these prior art documents, it's not possible to definitively determine if this exception applies to all claims. For the purpose of this analysis, they are considered prior art as they were cited as "Priority claimed from."