Inventor
Andrew H. Nippert
Inventor
Peoria, IL, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Fprimary
H01FMagnets18%
F16DCouplings for transmitting rotation15%
F15BSystems acting by means of fluids in general12%
F16HGearing12%
G01DMeasuring not specially adapted for a specific variable9%
G01RMeasuring electric variables9%
E02FDredging6%
F04BPositive-displacement machines for liquids6%
Y10TTechnical subjects covered by former us classification6%
B62DMotor vehicles3%
PatentTitleYear
11,118,636Clutch control valve assembly having armature with anti-adhesion surface treatment20216,739,127'Hydraulic system pump charging and recirculation apparatus'20046,681,571'Digital controlled fluid translating device'20046,655,136'System and method for accumulating hydraulic fluid'20036,651,545'Fluid translating device'20036,431,050'Apparatus for multiplexing a plurality of hydraulic cylinders'20026,389,343'Steering resistance device'20025,986,530'Solenoid and method for manufacturing'19995,865,156'Actuator which uses fluctuating pressure from an oil pump that powers a hydraulically actuated fuel injector'19995,856,771'Solenoid actuator assembly'19995,600,237'Method and apparatus for determining the position of an armature in an electromagnetic actuator by measuring the driving voltage frequency'19975,578,904'Method and apparatus for determining the position of an armature of an electromagnetic actuator in response to the magnitude and time derivative of the actuator coil current'19965,481,187'Method and apparatus for determining the position of an armature in an electromagnetic actuator'19965,208,570'Solenoid construction and method for making same'19935,137,254'Pressure compensated flow amplifying poppet valve'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2021Patents assigned to CATERPILLAR INC (15)· patent assignee history
1992–2021Based in Peoria, IL, US· patent location history
1996–1999Based in Washington, IL, US· patent location history
2003Patents assigned to CATERPILLAR MITSUBISHI LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CATERPILLAR INC | 15 | 1992–2021 |
| CATERPILLAR MITSUBISHI LTD | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Peoria, Illinois, US | 12 | 1992–2021 |
| Washington, Illinois, US | 3 | 1996–1999 |