Inventor
Michael R. DuHack
Inventor
Indianapolis, IN, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Kprimary
F16KValves31%
Y10TTechnical subjects covered by former us classification24%
F25CProducing, working or handling ice11%
F16LPipes9%
F25DRefrigerators7%
G05DSystems for controlling or regulating non-electric variables7%
G01FMeasuring volume, volume flow, mass flow or liquid level4%
A47LDomestic washing or cleaning2%
B01DSeparation2%
H01HElectric switches2%
PatentTitleYear
9,217,515'Reduced noise valve mechanism'20157,321,833'Fluid flow rate sensor'20087,222,642'Enhanced water valve tube stop'20077,163,590'Method and apparatus for sensing water flow through a dishwasher including a vacuum switch'20077,032,391'Method and device for stirring water during icemaking'20066,615,858'Appliance water valve assembly and associated method'20036,532,758'Water delivery system for refrigerator'20036,460,367'Water delivery system for refrigerator'20026,422,258'Snap-and-crimp appliance water valve assembly and associated method for making the same'20026,412,645'Integrated filter and noise suppressor device for a water valve assembly and associated method for operating the same'20026,378,542'Flow control device having a lip seal and compressible bypass pads and associated method for operating an appliance water valve'20026,076,801'Apparatus for improving the seating of an armature for a water valve'20005,964,447'Water valve assembly having attachment mechanism which prevents a fluid conduit from becoming detached from a valve body'19995,921,275'Apparatus for reducing noise generated by the flow of water through a water valve'19995,813,652'Apparatus for suppressing noise generated by a flow of water through a water valve'19985,810,331'Plastic inlet appliance water valve'19985,655,750'Plastic inlet appliance water valve'19975,154,394'Solenoid operated valve with improved flow control means'19924,967,786'Armature for a solenoid operated valve'19904,936,337'Armature for a solenoid operated valve'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990Patents assigned to EMHART IND (2)· patent assignee history
1990Based in Lafayette, IN, US· patent location history
1992–2008Patents assigned to EMERSON ELECTRIC CO (16)· patent assignee history
1992–2015Based in Indianapolis, IN, US· patent location history
1998–2000Based in Marion, IN, US· patent location history
2015Patents assigned to NIDEC MOTOR CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EMERSON ELECTRIC CO | 16 | 1992–2008 |
| EMHART IND | 2 | 1990 |
| NIDEC MOTOR CORP | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Indianapolis, IN, US | 14 | 1992–2015 |
| Marion, IN, US | 4 | 1998–2000 |
| Lafayette, IN, US | 2 | 1990 |