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For the Inventor, By the Inventor

York, PA, United States of America

Lwb Refractories Company


USPTO Granted Patents = 3

Trademarks = 2

Forward Citations = 5

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2 inventors (with patents filed for the assignee):

goldMedal Koji Ogata (3 out of 4 patents)

silverMedal Donald Bruce Hoover (2 out of 5 patents)


3 patents:

1. 8354354 - Anti-alumina-buildup refractories for casting nozzles (2013-01-15),
2. 7891408 - Method of producing anti-alumina-buildup immersion nozzle for continuous casting (2011-02-22),
3. 7172013 - Binding structure of refractory sleeve for inner hole of nozzle for continuous casting (2007-02-06),
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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#40 in York, PA

#2,626 in Pennsylvania

#72,023 in US

...
York, PA, United States of America

Lwb Refractories Company

Forward Citations = 5

2 inventors:

goldMedal Koji Ogata (3 out of 4 patents)

silverMedal Donald Bruce Hoover (2 out of 5 patents)

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