PATENT CLAIM ANALYSIS

Application Number: 16041793
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["709", "213000"]

Abstract:
Described herein are systems, devices, and methods for content delivery on the Internet. In certain non-limiting embodiments, a caching model is provided that can support caching for indefinite time periods, potentially with infinite or relatively long time-to-live values, yet provide prompt updates when the underlying origin content changes. In one approach, an origin server can annotate its responses to content requests with tokens, e.g., placing them in an appended HTTP header or otherwise. The tokens can drive the process of caching, and can be used as handles for later invalidating the responses within caching proxy servers delivering the content. Tokens may be used to represent a variety of kinds of dependencies expressed in the response, including without limitation data, data ranges, or logic that was a basis for the construction of the response.

Claim (Index 29):
A computer-implemented method performed by a content delivery network (CDN) server that has circuitry forming one or more processors and memory holding instructions for execution by the one or more processors, the method comprising:\n sending a request to an origin server; receiving a response to the request from the origin server, the response comprising: (i) content that is responsive to the request and (ii) a range token, the range token specifying a data range; serving the content to a first client device; storing the content in a cache local to the CDN server, in association with the range token; serving the content from the cache to at least a second client device, in response to a request from the second client device; receiving a message from the origin server, the message comprising an invalidation assertion that comprises any of: (iii) a specific data point within the data range and (iv) a sub-range within the data range; upon receipt of the message, the CDN server determining that any of (iii) the specific data point and the (iv) sub-range falls within the data range specified by the range token; in response to the determination, invalidating the content that was stored in the cache local to the CDN server, such that the CDN server no longer serves the content to client devices from the cache.

Metadata:
- Claim Count in Document: 77.0
- Percentile: 95.0
- Lexical Diversity: 1.57895
- Patent Class: 709.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14046884', '15719940', '14507601', '15356070', '14507754']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3146467815102494
- 35 USC 102 Novelty (BERT): 0.5614493398569755
- Combined Prediction Score: 0.3393270373449221
- Mean Citation Score: 430.426928
- Max Citation Score: 453.7847
- Similarity Product: 365.34237027022834

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test