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Inventor

H. David Prior

Inventor
State College, PA, US

Overview

7→
Patents
1998–2014
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C04Bprimary
C04BLime, magnesia50%
B22DCasting of metals21%
B22CFoundry moulding14%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace14%
PatentTitleYear
8,658,552'Chromia-containing refractory'20148,030,235'Refractory brick for steel ladles'20117,754,633'Chromia-alumina refractory'20106,548,436'Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the same'20036,407,023'Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the same'20025,944,888'Spray insulating coating for refractory articles'19995,766,686'Spray insulating coating for refractory articles'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2011Patents assigned to NORTH AMERICAN REFRACTORIES (5)· patent assignee history
1998–2003Based in State College, PA, US· patent location history
2010Patents assigned to HARBISON WALKER REERACTORIES C (1)· patent assignee history
2010–2014Based in Bethel Park, PA, US· patent location history
2014Patents assigned to HARBISON WALKER REFRACTORIES (1)· patent assignee history
2014Patents assigned to MCINTYRE III GLENN H (1)· patent assignee history
2014Patents assigned to PRIOR H DAVID (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTH AMERICAN REFRACTORIES51998–2011
HARBISON WALKER REERACTORIES C12010
HARBISON WALKER REFRACTORIES12014
MCINTYRE III GLENN H12014
PRIOR H DAVIDself12014
Locations
LocationPatentsSpan
State College, Pennsylvania, US41998–2003
Bethel Park, Pennsylvania, US32010–2014