Douglas N. Dunbar

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Strongsville, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Welding helmet configuration providing real-time fume exposure warn...
- Patent number 10,442,028
- Issue date Oct 15, 2019
- Lincoln Global, Inc.
- Douglas N. Dunbar
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding helmet configuration providing real-time fume exposure warn...
- Patent number 9,750,295
- Issue date Sep 5, 2017
- Lincoln Global, Inc.
- Bruce John Chantry
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
WELDING HELMET CONFIGURATION PROVIDING REAL-TIME FUME EXPOSURE WARN...
- Publication number 20170326674
- Publication date Nov 16, 2017
- LINCOLN GLOBAL, INC.
- Douglas N. Dunbar
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING HELMET CONFIGURATION PROVIDING REAL-TIME FUME EXPOSURE WARN...
- Publication number 20170013904
- Publication date Jan 19, 2017
- LINCOLN GLOBAL, INC.
- Bruce John Chantry
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
WELDING HELMET CONFIGURATION PROVIDING REAL-TIME FUME EXPOSURE WARN...
- Publication number 20120286958
- Publication date Nov 15, 2012
- LINCOLN GLOBAL, INC.
- Douglas N. Dunbar
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR