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:
Nov. 22, 2011
Filed:
Nov. 03, 2005
Geoffrey J Hulten, Lynwood, WA (US);
Gopalakrishnan Seshadrinathan, Redmond, WA (US);
Joshua T. Goodman, Redmond, WA (US);
Manav Mishra, Kirkland, WA (US);
Robert C J Pengelly, Seattle, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Ryan C Colvin, Woodinville, WA (US);
Geoffrey J Hulten, Lynwood, WA (US);
Gopalakrishnan Seshadrinathan, Redmond, WA (US);
Joshua T. Goodman, Redmond, WA (US);
Manav Mishra, Kirkland, WA (US);
Robert C J Pengelly, Seattle, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Ryan C Colvin, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Embodiments of proofs to filter spam are presented herein. Proofs are utilized to indicate a sender used a set amount of computer resources in sending a message in order to demonstrate the sender is not a 'spammer'. Varying the complexity of the proofs, or the level of resources used to send the message, will indicate to the recipient the relative likelihood the message is spam. Higher resource usage indicates that the message may not be spam, while lower resource usage increases the likelihood a message is spam. Also, if the recipient requires a higher level of proof than received, the receiver may request the sender send additional proof to verify the message is not spam.