Earl R. C. Johns

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Colorado Springs, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Nitrogen-containing materials for wear protection and friction redu...
- Patent number 5,232,570
- Issue date Aug 3, 1993
- Digital Equipment Corporation
- William G. Haines
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for production of magnetic media
- Patent number 4,816,119
- Issue date Mar 28, 1989
- Digital Equipment Corp.
- Gary C. Rauch
- G11 - INFORMATION STORAGE