Patents
https://www.cs.dartmouth.edu/~sws/research/patents.shtml
Last modified: 07/12/11 10:22:30 AM
Issued Patents
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 several of these
patents have the same name.
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US 7,831,040:
DES Hardware Throughput for Short Operations.
(with M. Lindemann and R. Perez.) (A USPTO division)
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US 7,362,863:
DES Hardware Throughput for Short Operations.
(with M. Lindemann and R. Perez.)
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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.) European version of US 7,362,863 above.
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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.)
Pending Patents
Since I formally terminated from IBM,
they no longer tell me about these.
