Inventor
John David Grozier
Inventor
Bethel Park, PA, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys75%
C21DModifying the physical structure of ferrous metals25%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to JONES & LAUGHLIN STEEL CORP (1)· patent assignee history
1976Based in Bethel Park, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JONES & LAUGHLIN STEEL CORP | 1 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bethel Park, Pennsylvania, US | 4 | 1976 |