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William E. Stelzel
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Issaquah, WA, US
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Patents Grants
last 30 patents
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Patent Grant
Pluggable file-based digital rights management API layer for applic...
Patent number
7,698,223
Issue date
Apr 13, 2010
Microsoft Corporation
Andrew D. Padawer
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Persistent storage file change tracking
Patent number
7,657,574
Issue date
Feb 2, 2010
Microsoft Corporation
Anoop Gupta
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
Persistent storage file change tracking
Publication number
20060277223
Publication date
Dec 7, 2006
Microsoft Corporation
Anoop Gupta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Pluggable file-based digital rights management API layer for applic...
Publication number
20060242073
Publication date
Oct 26, 2006
Microsoft Corporation
Andrew D. Padawer
G06 - COMPUTING CALCULATING COUNTING