Inventor
Michael H. Kieffer
Inventor
Redondo Beach, CA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F25Bprimary
F25BRefrigeration machines, plants or systems38%
G05DSystems for controlling or regulating non-electric variables23%
F16FSprings15%
G01DMeasuring not specially adapted for a specific variable8%
G05BControl or regulating systems in general8%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers8%
PatentTitleYear
10,416,691Adaptive phase control of cryocooler active vibration cancellation201910,060,655Temperature control of multi-stage cryocooler with load shifting capabilities20187,779,640'Low vibration cryocooler'20107,684,955'Noncontinuous resonant position feedback system'20105,836,165'Adaptive feedforward vibration control system and method'19985,535,593'Apparatus and method for temperature control of a cryocooler by adjusting the compressor piston stroke amplitude'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1998Patents assigned to HUGHES AIRCRAFT CO (2)· patent assignee history
1996–2019Based in Redondo Beach, CA, US· patent location history
2010–2019Patents assigned to RAYTHEON CO (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RAYTHEON CO | 4 | 2010–2019 |
| HUGHES AIRCRAFT CO | 2 | 1996–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Redondo Beach, California, US | 6 | 1996–2019 |