The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2012
Filed:
Apr. 30, 2009
Jiahe Helen Wang, Redmond, WA (US);
Barend H. Venter, Issaquah, WA (US);
Christopher L. Grier, Urbana, IL (US);
Jiahe Helen Wang, Redmond, WA (US);
Barend H. Venter, Issaquah, WA (US);
Christopher L. Grier, Urbana, IL (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A web browser operating system using a browser kernel places principals having different origins in separate principal instances, where each separate principal instance executes in a separate protection domain. Principal origin may be determined using the combination of protocol, domain name, and port. The browser kernel mediates communications between principal instances, and between the principal instances and the operating system. Within each principal instance, a browser runtime executes as a restricted operating system process (ROSP), while any plugins are executed as a separate ROSP. Renderings from each browser runtime are combined by the browser kernel for presentation to a user.