Inventor
David William Helfrich
Inventor
Lynchburg, VA, US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Wprimary
H04WWireless communication networks100%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999Patents assigned to ERICSSON INC (1)· patent assignee history
1999Based in Lynchburg, VA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ERICSSON INC | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lynchburg, Virginia, US | 1 | 1999 |