Inventor
Erna J. Beal
Inventor
Fort Washington, MD, US
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties40%
F02BInternal-combustion piston engines20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992Patents assigned to US NAVY (1)· patent assignee history
1992–1994Based in Fort Washington, MD, US· patent location history
1994Patents assigned to US ARMY (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| US ARMY | 1 | 1994 |
| US NAVY | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fort Washington, Maryland, US | 2 | 1992–1994 |