Inventor
Douglas D. Zeigler
Inventor
Atwater, OH, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C23Cprimary
C23CCoating metallic material17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
B22DCasting of metals11%
C04BLime, magnesia11%
H10NElectric solid-state devices not otherwise provided for11%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling6%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material6%
B23KSoldering or unsoldering6%
B23PMetal-working not otherwise provided for6%
F22BMethods of steam generation6%
PatentTitleYear
8,350,176'Method of forming, inserting and permanently bonding ribs in boiler tubes'20136,503,340'Method for producing chromium carbide coatings'20036,387,194'Process and composition for chromizing 400-series stainless steels'20026,174,468'Superconductor fiber elongation with a heated injected gas'20015,912,050'Method for chromizing small parts'19995,759,961'Superconductor fiber elongation with a heated injected gas'19985,511,613'Elongated heat exchanger tubes having internal stiffening structure'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996Patents assigned to HUDSON PRODUCTS CORP (1)· patent assignee history
1996–2013Based in Atwater, OH, US· patent location history
1998–2003Patents assigned to BABCOCK & WILCOX CO (4)· patent assignee history
1999–2003Patents assigned to MCDERMOTT TECHNOLOGY INC (4)· patent assignee history
2003Based in Marlboro Township, Stark County, OH, US· patent location history
2013Patents assigned to BABCOCK & WILCOX POWER GENERAT (1)· patent assignee history
2013Patents assigned to HAINSWORTH JOHN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BABCOCK & WILCOX CO | 4 | 1998–2003 |
| MCDERMOTT TECHNOLOGY INC | 4 | 1999–2003 |
| BABCOCK & WILCOX POWER GENERAT | 1 | 2013 |
| HAINSWORTH JOHN | 1 | 2013 |
| HUDSON PRODUCTS CORP | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Atwater, OH, US | 6 | 1996–2013 |
| Marlboro Township, Stark County, OH, US | 1 | 2003 |