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Patents
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www.cs.dartmouth.edu/~sws/research/patents.shtml
Last modified: Monday, 28-May-2007 08:13:08 EDT
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Issued Patents
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US 7,194,759:
Used trusted co-servers to enhance security of web interaction.
(with D. Chess et al.)
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US 7,188,258:
Method and apparatus for producing duplication- and imitation-resistant identifying marks on objects, and duplication- and duplication- and imitation-resistant objects.
(with G. Aggarwal et al.)
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European Patent 1297652B1:
Improving DES Hardware Throughput for Short Operations.
(with M. Lindemann.)
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European Patent 1076872B1:
Method and Apparatus for Collecting Information Associated with Movement Between
Locations. (with J. Dyer, K. Goldman, E. Palmer, P. Rohatgi.)
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European Patent 1068581B1:
Authenticated Electronic Coupon Issuing and Redemption.
(with C. Palmer and E. Palmer.)
(European version of US 6,505,773 below.)
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US 6,161,180:
Authentication for Secure Devices with Limited Cryptography.
(with S. Matyas)
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US 6,167,421:
Securely Downloading and Executing Code from Mutually
Suspicious Authorities (with S. Weingart)
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US 6,219,788
Watchdog for Trusted Electronic Content Distributions
(with R. Flavin, P. Nihal and R. Perez)
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US 6,233,685
Establishing and Employing the Provable Untampered State of
a Device
(with S. Weingart)
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US 6,243,812 Authentication for Secure Devices with Limited
Cryptography. (with S. Matyas). (A USPTO division of the application
that became US 6,161,180.)
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US 6,304,970
Hardware Access Control Locking
(with M. Bizzaro et al.)
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US 6,505,301 Authentication for Secure Devices with Limited
Cryptography. (with S. Matyas). (Yet another USPTO division of the application
that became US 6,161,180.)
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US 6,505,302 Authentication for Secure Devices with Limited
Cryptography. (with S. Matyas). (Perhaps the final USPTO division of the application
that became US 6,161,180.)
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US 6,505,773 Authenticated electronic coupon issuing and redemption (with C. Palmer and E. Palmer.)
In case you're wondering: if the USPTO decides your application
contains multiple inventions, they partition the application and
process each invention separately...which is why four of the above
patents have the same name.
Pending Patents
Since I formally terminated from IBM,
they no longer tell me about these.
