Inventor
Clifford C. Federspiel
Inventor
El Cerrito, CA, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F24Fprimary
F24FAir-conditioning28%
G05DSystems for controlling or regulating non-electric variables18%
G05BControl or regulating systems in general12%
H05KPrinted circuits12%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications12%
G08BSignalling systems, e.g. personal calling systems3%
B61DBody details or kinds of railway vehicles2%
B64DEquipment for fitting in or to aircraft2%
F04DNon-positive-displacement pumps2%
G01FMeasuring volume, volume flow, mass flow or liquid level2%
PatentTitleYear
10,417,596Point-based risk score for managing environmental systems201910,410,502Method and apparatus for providing environmental management using smart alarms201910,108,154Influence learning for managing physical conditions of an environmentally controlled space by utilizing a calibration override which constrains an actuator to a trajectory20189,898,917'Method and apparatus for providing environmental management using smart alarms'20189,822,989'Controlling air temperatures of HVAC units'20179,568,924'Methods and systems for coordinating the control of HVAC units'20179,317,045'Method and apparatus for efficiently coordinating data center cooling units'20169,291,358'Accuracy-optimal control decisions for systems'20168,924,026'Energy-optimal control decisions for systems'20148,688,243'Method and apparatus for controlling fans in heating, ventilating, and air-conditioning systems'20148,634,962'Method and apparatus for efficiently coordinating data center cooling units'20148,224,489'Method and apparatus for coordinating the control of HVAC units'20128,190,273'Method and apparatus for controlling fans in heating, ventilating, and air-conditioning systems'20127,726,582'Method and apparatus for converting constant-volume supply fans to variable flow operation'20106,719,625'Method and apparatus for controlling variable air volume supply fans in heating, ventilating, and air-conditioning systems'20046,557,574'Pressure based flow rate measurement device integrated with blades of a damper'20035,875,109'Adaptive flow controller for use with a flow control system'19995,862,982'Optimal ventilation control strategy'19995,768,121'Adaptive flow controller for use with a flow control system'19985,550,752'Method and apparatus for estimating the rate at which a gas is generated within a plurality of zones'19965,464,369'Method and apparatus for estimating the rate at which a gas is generated within an enclosed space'19955,170,935'Adaptable control of HVAC systems'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992Based in Cambridge, MA, US· patent location history
1995–1999Patents assigned to JOHNSON SERVICE CO (5)· patent assignee history
1995–1999Based in Shorewood, WI, US· patent location history
2003–2019Based in El Cerrito, CA, US· patent location history
2010–2012Patents assigned to FEDERSPIEL CORP (3)· patent assignee history
2012–2017Patents assigned to FEDERSPIEL CLIFFORD C (4)· patent assignee history
2012–2014Patents assigned to FEDERSPIEL KURT (3)· patent assignee history
2014–2019Patents assigned to VIGILENT CORP (11)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VIGILENT CORP | 11 | 2014–2019 |
| JOHNSON SERVICE CO | 5 | 1995–1999 |
| FEDERSPIEL CLIFFORD Cself | 4 | 2012–2017 |
| FEDERSPIEL CORP | 3 | 2010–2012 |
| FEDERSPIEL KURT | 3 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| El Cerrito, California, US | 16 | 2003–2019 |
| Shorewood, WI, US | 5 | 1995–1999 |
| Cambridge, Massachusetts, US | 1 | 1992 |