Inventor
Earl W. Gosswiller
Inventor
Clarendon Hills, IL, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Qprimary
B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general48%
G10KSound-producing devices12%
F21SNon-portable lighting devices8%
F21VFunctional features or details of lighting devices or systems thereof8%
LOCD18%
LOCD28%
G01RMeasuring electric variables4%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers4%
PatentTitleYear
RE036245'Non-linear signalling device for vehicles'19995,584,560'Remote control spotlight'19965,146,508'Omindirectional modular siren'1992D0324921'Light bar for an emergency vehicle'19925,097,397'Non-linear signalling device for vehicles'19924,847,590'Outdoor warning siren'19894,635,039'Low drag warning system for emergency vehicles'19874,595,904'Warning light system for emergency vehicles'1986D0280978'Combined light and speaker housing for emergency vehicles'19854,529,969'Siren'19854,488,209'Portable lighting apparatus'19844,387,362'Method and apparatus for increasing effective light intensity of a rotating light'19834,357,595'Flashing light warning system for vehicles'19824,286,254'Rotating signal light with variable voltage lamp circuit'19814,281,311'Method and apparatus for increasing effective light intensity of a rotating light'19814,240,062'Flashing light warning system for vehicles'1980D0254604'Combined light and siren speaker housing for emergency vehicle'1980D0254603'Combined light and siren speaker housing for emergency vehicle'19804,189,709'Modular housing assembly for vehicle warning light system'19804,100,380'Supervisory circuit for monitoring speaker coils'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1999Patents assigned to FEDERAL SIGNAL CORP (16)· patent assignee history
1978–1992Based in Clarendon Hills, IL, US· patent location history
1980–1992Patents assigned to FED SIGNAL CORP (4)· patent assignee history
1989–1999Based in Pompano Beach, FL, US· patent location history
1992Based in Miami Beach, FL, US· patent location history
1996Based in Willowbrook, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FEDERAL SIGNAL CORP | 16 | 1978–1999 |
| FED SIGNAL CORP | 4 | 1980–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Clarendon Hills, Illinois, US | 15 | 1978–1992 |
| Pompano Beach, Florida, US | 3 | 1989–1999 |
| Willowbrook, Illinois, US | 1 | 1996 |
| Miami Beach, Florida, US | 1 | 1992 |