John H. Ryder

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Durham, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-verifying receipt and acceptance system for electronically del...
- Patent number 4,953,209
- Issue date Aug 28, 1990
- International Business Machines Corp.
- John H. Ryder
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Text compression and expansion method and apparatus
- Patent number 4,843,389
- Issue date Jun 27, 1989
- International Business Machines Corp.
- Ronald J. Lisle
- G06 - COMPUTING CALCULATING COUNTING