Growing community of inventors

Columbus, OH, United States of America

Keith E Shafer

Average Co-Inventor Count = 1.50

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 31

Keith E ShaferCharles Stanley Fenton (2 patents)Keith E ShaferKeith E Shafer (3 patents)Charles Stanley FentonCharles Stanley Fenton (9 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sterling Commerce, Inc. (1 from 27 patents)

2. Ibm International Group Bv (1 from 16 patents)

3. Oclc Online Library Center, Incorporated (1 from 1 patent)


3 patents:

1. 8621594 - Method and system for secure communication

2. 7958550 - Method and system for secure communication

3. 5583762 - Generation and reduction of an SGML defined grammer

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as of
12/12/2025
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