Inventor
Wright M. Welton
Inventor
Oldtown, MD, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Bprimary
C03BManufacture, shaping, or supplementary processes43%
Y02PClimate change mitigation technologies in the production or processing of goods29%
C03CChemical composition of glasses, glazes or vitreous enamels21%
G01KMeasuring temperature7%
PatentTitleYear
4,886,539'Method of vacuum refining of glassy materials with selenium foaming agent'19894,794,860'Foam control method for vacuum refining of glassy materials'19894,780,122'Vacuum refining of glass or the like with enhanced foaming'19884,738,938'Melting and vacuum refining of glass or the like and composition of sheet'19883,957,475'Measuring glass surface temperature during annealing'19763,941,576'Method and apparatus for making molten glass with batch guiding means'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1989Patents assigned to PPG INDUSTRIES INC (6)· patent assignee history
1976–1988Based in Paw Paw, WV, US· patent location history
1988–1989Based in Oldtown, MD, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PPG INDUSTRIES INC | 6 | 1976–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oldtown, Maryland, US | 3 | 1988–1989 |
| Paw Paw, WV, US | 3 | 1976–1988 |