John G. North

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Pottstown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Graphite/carbon articles for elevated temperature service and metho...
- Patent number 5,352,523
- Issue date Oct 4, 1994
- Air Products and Chemicals, Inc.
- Zbigniew Zurecki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Graphite/carbon articles for elevated temperature service and metho...
- Patent number 5,304,417
- Issue date Apr 19, 1994
- Air Products and Chemicals, Inc.
- Zbigniew Zurecki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of forming titanium nitride coatings on carbon/graphite subs...
- Patent number 5,254,359
- Issue date Oct 19, 1993
- Air Products and Chemicals, Inc.
- Zbigniew Zurecki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of producing titanium nitride coatings by electric arc therm...
- Patent number 5,213,848
- Issue date May 25, 1993
- Air Products and Chemicals, Inc.
- Zbigneiw Zurecki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of producing titanium nitride coatings by electric arc therm...
- Patent number 5,066,513
- Issue date Nov 19, 1991
- Air Products and Chemicals, Inc.
- Zbigniew Zurecki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...