Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RM

Rushmi U. Malaviarachchi — 14 Patents

Microsoft: 14 patents #2,871 of 40,388Top 8%
Redmond, WA: #915 of 8,547 inventorsTop 15%
Washington: #7,280 of 76,902 inventorsTop 10%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Rushmi U. Malaviarachchi has been granted 14 US patents while listed as an inventor at Microsoft. The first was granted in 2008 and the most recent in February 2016. Rushmi U. Malaviarachchi ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Rushmi U. Malaviarachchi in Redmond, WA, US.

Patents per Year

Patents granted per year, 2008 to 2016Bar chart with a peak of 3 patents in 2008.peak 32008: 3 patents20082009: 2 patents20092011: 2 patents20112012: 3 patents20122014: 3 patents20142016: 1 patents2016

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9264232 Cryptographic device that binds an additional authentication factor to multiple identities Craig Wittenberg, Christian Paquin 2016-02-16 $29,091,000
8819437 Cryptographic device that binds an additional authentication factor to multiple identities Craig Wittenberg, Christian Paquin 2014-08-26 $21,459,000
8719171 Issuing a publisher use license off-line in a digital rights management (DRM) system Steve Bourne, Blair B. Dillaway, Pierre Jacomet, Kumar B. Parambir, Yevgeniy Rozenfeld +2 more 2014-05-06 $28,438,000
8646027 Workflow based authorization for content access Kenneth D. Ray, Scott C. Cottrille, Frederic Delombaerde, Conrad G. Bayer 2014-02-04 $20,363,000
8341720 Information protection applied by an intermediary device Noam Ben-Yochanan, John Neystadt, Nir Nice, Max Uritsky 2012-12-25
8156538 Distribution of information protection policies to client machines Abhijat Kanade, Peter David Waxman, Yuhui Zhong, Gregory Kostal, Scott C. Cottrille +4 more 2012-04-10 $17,388,000
8141129 Centrally accessible policy repository Kenneth D. Ray, Keith S. Brintzenhofe, Scott C. Cottrille, Gregory Kostal, Vladimir Yarmolenko +1 more 2012-03-20 $19,292,000
8059820 Multi-factor content protection Mayur Kamat, David B. Cross 2011-11-15 $16,121,000
7882035 Pre-performing operations for accessing protected content Scott C. Cottrille, Gregory Kostal, Jeffrey M. Brown, Umesh R. Dhond, Amit Fulay +5 more 2011-02-01 $15,193,000
7577999 Publishing digital content within a defined universe such as an organization in accordance with a digital rights management (DRM) system Attila Narin, Chandramouli Venkatesh, Frank Byrum, Marco A. DeMello, Peter David Waxman +4 more 2009-08-18 $21,161,000
7543140 Revocation of a certificate and exclusion of other principals in a digital rights management (DRM) system based on a revocation list from a delegated revocation authority Blair B. Dillaway, Philip J. Lafornara, Brian A. LaMacchia, John L. Manferdelli, Charles F. Rose, III 2009-06-02 $32,982,000
7376975 Enhancing digital rights management system security through policy enforcement Philip J. Lafornara, John L. Manferdelli, Michael David Marr, Charles F. Rose, III, Bradley Serbus 2008-05-20 $37,918,000
7370212 Issuing a publisher use license off-line in a digital rights management (DRM) system Steve Bourne, Blair B. Dillaway, Pierre Jacomet, Kumar B. Parambir, Yevgeniy (Eugene) Rozenfeld +2 more 2008-05-06 $36,419,000
7318236 Tying a digital license to a user and tying the user to multiple computing devices in a digital rights management (DRM) system Marco A. DeMello, Vinay Krishnaswamy, John L. Manferdelli, Bradley Serbus, Attila Narin +1 more 2008-01-08 $46,847,000