Inventor
Frank Niertit
Inventor
Casselberry, FL, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Dprimary
F02DControlling combustion engines25%
H03KPulse technique25%
H04MTelephonic communication25%
H04QSelecting25%
PatentTitleYear
4,482,817'Bilateral electronic switch'19844,451,703'All electronic interface for telephony system'19844,437,096'Concentrator circuit incorporating solid state bilateral bridge arrangement'19844,354,060'Electronic telephone'19824,096,839'Internal combustion engine air-fuel ratio control system utilizing oxygen sensor'19784,052,970'Air-fuel ratio control system utilizing oxygen sensor and pressure differential sensor'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1984Patents assigned to STROMBERG CARLSON CORP (5)· patent assignee history
1977–1978Based in Webster, NY, US· patent location history
1982Based in Maitland, FL, US· patent location history
1984Patents assigned to STROMBERG CARLSON (1)· patent assignee history
1984Based in Casselberry, FL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STROMBERG CARLSON CORP | 5 | 1977–1984 |
| STROMBERG CARLSON | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Casselberry, Florida, US | 3 | 1984 |
| Webster, New York, US | 2 | 1977–1978 |
| Maitland, Florida, US | 1 | 1982 |