Inventor
Kenneth A. Houck
Inventor
Haverhill, MA, US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables50%
H04MTelephonic communication50%
PatentTitleYear
4,939,775'Telephone ringing detector'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990Patents assigned to AT & T BELL LAB (1)· patent assignee history
1990Based in Haverhill, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AT & T BELL LAB | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Haverhill, Massachusetts, US | 1 | 1990 |