Robert Lowell Powers

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West Hurley, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Cryptographic communication and file security using terminals
- Patent number 4,386,234
- Issue date May 31, 1983
- International Business Machines Corp.
- William F. Ehrsam
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic communication security for single domain networks
- Patent number 4,238,853
- Issue date Dec 9, 1980
- International Business Machines Corporation
- William F. Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Product block cipher system for data security
- Patent number 3,962,539
- Issue date Jun 8, 1976
- International Business Machines Corporation
- William Friedrich Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Block cipher system for data security
- Patent number 3,958,081
- Issue date May 18, 1976
- International Business Machines Corporation
- William Friedrich Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE