Inventor
Elvin D. Stepp
Inventor
Cincinnati, OH, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G08Bprimary
G08BSignalling systems, e.g. personal calling systems29%
H04LTransmission of digital information, e.g. telegraphic communication29%
G05FSystems for regulating electric or magnetic variables14%
H03KPulse technique14%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers14%
PatentTitleYear
5,420,570'Manually actuatable wrist alarm having a high-intensity sonic alarm signal'19955,258,746'Manually actuatable wrist alarm having a high-intensity sonic alarm signal'19934,618,966'Frequency shift key modulator'19864,535,461'Digital clock bit synchronizer'19854,449,237'Audio feedback suppressor'19844,423,381'Pulse control circuit'19834,017,788'Programmable shunt voltage regulator circuit'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to TEXAS INSTRUMENTS INC (1)· patent assignee history
1977–1984Based in Cincinnati, OH, US· patent location history
1983–1986Patents assigned to CINCINNATI ELECTRONICS CORP (4)· patent assignee history
1985–1986Based in Fairfield, OH, US· patent location history
1993–1995Patents assigned to K & B PROTECTION INC (2)· patent assignee history
1993–1995Based in Hamilton, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CINCINNATI ELECTRONICS CORP | 4 | 1983–1986 |
| K & B PROTECTION INC | 2 | 1993–1995 |
| TEXAS INSTRUMENTS INC | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cincinnati, OH, US | 3 | 1977–1984 |
| Hamilton, OH, US | 2 | 1993–1995 |
| Fairfield, OH, US | 2 | 1985–1986 |