Obviousness

Obviousness Analysis of U.S. Patent 11,301,898 under 35 U.S.C. § 103

Under 35 U.S.C. § 103, a patent claim is invalid "if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art." This analysis considers whether a person of ordinary skill in the art (PHOSITA), aware of the relevant prior art, would have been motivated to combine or modify existing teachings to arrive at the claimed invention with a reasonable expectation of success.

The core of the invention in U.S. Patent 11,301,898, particularly as defined in independent claim 1, is a specific, distributed ad-serving process. A first computer system (e.g., a "Targeting System") provides a second, unaffiliated computer system (e.g., an "Ad Network") with a specific condition. The Ad Network must then check this condition at a later time when a user is on one of its websites and, only if the condition is met, redirect the user back to the Targeting System to receive a targeted ad. The key distinction from the cited prior art is this pre-emptive, distributed decision-making, where the Ad Network is empowered to act as a gatekeeper based on a rule supplied by the Targeting System.

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Obviousness Combination: U.S. Patent No. 9,785,942 (Shin) in view of the Background Art Acknowledged by the '898 Patent Itself

A strong case for obviousness can be made by combining the teachings of Shin with the state of the art acknowledged within the specification of the '898 patent itself.

1. Base Reference: Shin (US 9,785,942)

Shin discloses the foundational architecture and workflow for cross-system communication in online advertising. It teaches:

• A first computer system (Shin's "ad server") and a second computer system not controlled by the first entity (Shin's "advertiser server").
• The first system serves an ad and logs an identifier, which functions as a tag, associated with a user's device.
• At a later time, when the user visits the advertiser's site (analogous to the "second website"), the second computer system initiates a communication back to the first system (a "conversion ping"), which functions as a redirection.
• This redirection allows the first system to perform a subsequent action (logging a cross-device conversion).

Shin therefore teaches most of the high-level steps of claim 1: the two-system architecture, the initial tagging, a subsequent user visit to the second system's domain, and a redirection from the second system back to the first.

2. Missing Element in Shin

As established in the prior art analysis, Shin does not explicitly teach the key limitations of claim 1:

• (H) The first computer system electronically transferring a condition specific to the visitor's device to the second computer system.
• (J) The second computer system checking the condition and determining that it is met before initiating the redirection.

In Shin, the "conversion ping" is sent unconditionally upon the conversion event. The decision-making intelligence resides entirely within the first system after it receives the ping.

3. Secondary Teaching: The '898 Patent's Acknowledgment of Prior Art

The '898 patent's own specification can be used to establish what a PHOSITA would have known at the time of the invention. The "Description" section of the '898 patent includes a crucial statement describing the existing relationship between behavioral targeting companies and publishers:

"The weather.com ad server's decision, whether or not to redirect the visitor's computer to BT company #1's server can be based on the price that BT company #1 promised to pay weather.com for the presentation of an ad within weather.com's ad space..." (U.S. Patent 11,301,898, Col. 6, ll. 28-34).

This sentence explicitly describes a business and technical reality that a PHOSITA would have understood: the second system (the publisher, weather.com) must make a decision about whether a redirection is worthwhile, and this decision is based on a financial parameter (the price) provided by the first system (the BT company).

4. Motivation to Combine and Reasonable Expectation of Success

A PHOSITA, starting with the basic redirection framework taught by Shin, would have been motivated to modify it to accommodate the known business logic described in the '898 patent's background.

• Motivation: The motivation is rooted in economic efficiency. The publisher (second system) would not want to cede valuable ad space via a redirection unless it met a minimum price threshold. Likewise, the targeting company (first system) would not want to field countless redirection requests for ad opportunities that are too expensive or otherwise undesirable. Implementing a pre-check at the publisher's end avoids wasted network traffic, reduces server load for the targeting company, and allows the publisher to instantly fill the ad space with another ad if the condition is not met.

• Obvious Implementation: Given this motivation, the most direct and obvious way to implement this decision-making process would be for the first system to communicate the parameters of the deal to the second system. The "price that BT company #1 promised to pay" is precisely the condition claimed in the patent. Transferring this price from the first system to the second so that the second system can "check" it against its own floor price before redirecting is not an inventive leap, but rather a straightforward implementation of the acknowledged business practice.

Therefore, a PHOSITA would have been motivated to modify Shin's unconditional redirection to a conditional one by having the first system send a price or other rule (the "condition") to the second system, which would then check this condition before redirecting. This combination renders the novel elements of claim 1 obvious. All other claims (e.g., system and CRM claims 6 and 11) would be obvious for the same reason.