Christopher D. Speakman

Follow

Person

Greenfield, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Identification method for dip galvanizing
- Patent number 6,764,016
- Issue date Jul 20, 2004
- Infosight Corporation
- John A. Robertson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Colored patch laser marking
- Patent number 6,518,542
- Issue date Feb 11, 2003
- Infosight Corporation
- John A. Robertson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Laser markable micro-pore aluminum tags and method of their fabrica...
- Patent number 6,451,421
- Issue date Sep 17, 2002
- Infosight Corporation
- John A. Robertson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Identification method for dip galvanizing
- Publication number 20040074972
- Publication date Apr 22, 2004
- John A. Robertson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LASER MARKABLE MICRO-PORE ALUMINUM TAGS AND METHOD OF THEIR FABRICA...
- Publication number 20020132105
- Publication date Sep 19, 2002
- John A. Robertson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...