US 8108441

Patent Overview — US8108441B2

Title: Efficient creation, storage, and provision of web-viewable documents

Patent number / application: US8108441B2; Application US12/427,552

Inventor: Matthew J. Ruhlen

Original assignee: Microsoft Corp; current assignee listed as Microsoft Technology Licensing LLC

Key dates (as listed): Priority/filing date 2009-04-21; publication of US20100268736A1 on 2010-10-21; granted 2012-01-31; adjusted expiration 2030-03-04. Legal status shown as Active. The source notes legal status and priority date are assumptions, not legal conclusions.

Purpose and plain-language scope: The patent addresses serving a document to a client browser without sending the entire document at once. A web server renders a version of a document into multiple "named objects" (for example text, images, or background frames), orders them in the anticipated order of access, and bundles them together with a manifest describing the relative positions of named objects within the bundle. The bundle is stored in bundle storage, such as a network cache.

When a browser requests a particular named object representing a portion of the document, the server determines which chunk of the bundle contains it. If that chunk is not stored locally, the server requests and receives the chunk from bundle storage, stores it locally, and sends the requested named objects to the browser without sending the additional named objects in the chunk. Later requests for objects in an already-retrieved chunk can be served from local storage, improving efficiency.

The description also covers sending the manifest and a document data file (plus browser-executable code such as JavaScript) to the browser; the browser may include the object's relative position in its request. A load-balancing server may route subsequent requests back to the same web server, for example using a cookie. Chunk size determines how the bundle is written to storage, including sequential files if specific byte-range reads are unsupported.

Source: https://patents.google.com/patent/[US8108441](/patent/US8108441)/en

What the excerpt does not establish: It does not provide the full claims, complete specification, all figures, prosecution history, or a verbatim abstract ending; the abstract text is truncated at "additional named objec." It does not establish litigation, ownership transfers, validity, or prior art, which were not researched.