Inventor
Gerald A. Duenkel
Inventor
Grafton, WI, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F24Fprimary
F24FAir-conditioning29%
G05DSystems for controlling or regulating non-electric variables21%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications14%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles7%
F16KValves7%
G05BControl or regulating systems in general7%
H02HEmergency protective circuit arrangements7%
H02JElectric power networks7%
PatentTitleYear
11,042,171Integrated smart actuator device202110,359,208Integrated smart actuator and valve device20199,746,199'Integrated smart actuator and valve device'20176,495,981'Motorized actuator with a variable stall level'20025,852,333'Electric actuator return-to-normal using capacitor energy storage with regulated output'19984,481,451'Electronically controlled positioner for pneumatic actuators'19844,476,415'Feedback transducer'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1998Patents assigned to JOHNSON SERVICE CO (3)· patent assignee history
1984Based in Milwaukee, WI, US· patent location history
1998–2021Based in Grafton, WI, US· patent location history
2002–2021Patents assigned to JOHNSON CONTROLS TECH CO (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JOHNSON CONTROLS TECH CO | 4 | 2002–2021 |
| JOHNSON SERVICE CO | 3 | 1984–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Grafton, WI, US | 5 | 1998–2021 |
| Milwaukee, WI, US | 2 | 1984 |